• Post category:Lower Receivers
  • Post last modified:August 1, 2022
  • Reading time:30 mins read

Affiliate Disclosure: AmmoCave.com sometimes gets paid for listings, through sponsors or affiliate programs like Lucky Gunner, Optics Planet, Brownells, Cabelas, Academy Sports & Outdoors, Rainier Arms, Palmetto State Armory, Sportsman’s Guide, Ammo.com, Ammo Man, Primary Arms, MidWayUsa, Amazon, eBay, etс. Clicking a link helps keep AmmoCave.com free, at no extra cost to you!

Authors: Each article is verified by AmmoCave's expert team. Professional hunters and gun experts write the articles. AmmoCave Team independently researches, tests, reviews, and uses recommendations from our community of gun owners. We may earn commissions from shopping links.

Note: The views and opinions expressed in this article are those of the authors and do not necessarily reflect any agency's official policy or position. The articles are for informational purposes only, share your opinions about Best Stripped Lower Receiver in the comments and join the discussions. Let's share 💬 our ammo & gun experiences together!

Best Stripped Lower Receiver

A stripped lower receiver is the body of an AR-15 rifle without the upper receiver, barrel, magazine, or firing control parts. It is typically used to build a custom AR-15 rifle by attaching a new upper receiver, barrel, and other components. The stripped lowers come without any internal components, just the lower receiver itself.

Why do we need a Stripped AR 15 Lower Receiver?

A Stripped AR 15 Lower Receiver is arguably the most important part of the rifle. It is the foundation which everything else is built upon. This is why it is so important to make sure you are buying a quality stripped receiver. You want something that will be reliable and durable.

There are many different brands and manufacturers of stripped lowers. This can make it difficult to choose the best one. However, there are a few things you can keep in mind that will help you make your decision:

  • First, consider the quality of the materials used. The receiver should be made from high-quality aluminum. This will help to ensure that it is durable and will last a long time.
  • Second, make sure the receiver has a good finish. The finish should be smooth and even. It should not have any blemishes or imperfections.
  • Third, consider the price. You don’t want to overspend on your receiver. However, you also don’t want to cheap out and buy an inferior product.
  • Fourth, make sure the receiver is compatible with the rest of your rifle. You don’t want to end up with a receiver that won’t fit properly.
  • Finally, read reviews. This will help you get a feel for the quality of the receiver. It will also help you see what other people think about it.

Best Pick

FOXTROT MIKE PRODUCTS LOWER RECEIVER STRIPPED

FOXTROT MIKE PRODUCTS LOWER RECEIVER STRIPPED

View on Brownells

The FM-9 Billet Lower Receiver is completely stripped and ready for all standard mil-spec AR-15 parts, compatible with all 9-mm Glock-style mags such as Magpul. The side charging and the LBHO operate flawlessly. The upper and lower fit well without wobble as well as all components. The trigger guard is large enough for gloves.

Budget Pick

ANDERSON MANUFACTURING STRIPPED LOWER RECEIVER

ANDERSON MANUFACTURING STRIPPED LOWER RECEIVER

View on Brownells

The Stripped, semi-auto lower receiver delivers drop-in installation of Mil-Spec, aftermarket components due to the precision machining. These lowers are sturdy and dependable due to hard-anodizing. The fit between the upper and lower is precise with zero gaps.

Top 23 Best Stripped Lower Receiver For The Money

#1 SPIKES TACTICAL STRIPPED LOWER RECEIVER

SPIKES TACTICAL STRIPPED LOWER RECEIVER

View on Brownells

#2 MATRIX ARMS MULTI-CALIBER STRIPPED LOWER RECEIVER

MATRIX ARMS MULTI-CALIBER STRIPPED LOWER RECEIVER

View on Brownells

#3 LEWIS MACHINE & TOOL MARS-L STRIPPED LOWER RECEIVER

LEWIS MACHINE & TOOL MARS-L STRIPPED LOWER RECEIVER

View on Brownells

#4 CROSS MACHINE TOOL CO. STRIPPED LOWER RECEIVER

CROSS MACHINE TOOL CO. STRIPPED LOWER RECEIVER

View on Brownells

#5 LEWIS MACHINE & TOOL LOWER RECEIVER STRIPPED

LEWIS MACHINE & TOOL LOWER RECEIVER STRIPPED

View on Brownells

#6 BROWNELLS STRIPPED LOWER RECEIVER

BROWNELLS STRIPPED LOWER RECEIVER

View on Brownells

Specification

MAKE: AR .308, HECKLER & KOCH
MODEL: 417
CARTRIDGE: 308 WINCHESTER, 7.62 MM NATO
Style: Stripped

The BROWNELLS Lowers with the classic HK417 contours and markings. The Lower Receivers are constructed from original German HK417 forging, and anodized with a matte black, Type III. The FFL information is machined on the magazine well front.

Pros
  • Crafted under spec and assembled flawlessly

  • The top-notch forged lower

  • Selector markings are made with color-filled pictograms

  • Snug fitting

  • Durable build

Cons
  • The HK mags only hold 20 rounds but marked 30, which doesn’t show real capacity

#7 BROWNELLS BRN-4 STRIPPED LOWER RECEIVER

BROWNELLS BRN-4 STRIPPED LOWER RECEIVER

View on Brownells

#8 BROWNELLS BRN-180 STRIPPED LOWER RECEIVER FORGED

BROWNELLS BRN-180 STRIPPED LOWER RECEIVER FORGED

View on Brownells

Specification

Cartridge: 5.56 mm NATO
Style: Stripped

The forged lower receiver is constructed close to the design of Eugene Stoner and Arthur Miller’s original AR-18 rifle (1963), combining all the right visual lines and modern AR-15 lower receiver features. The lowers accept standard Mil-Spec AR-15 lower components kits, feeding from USGI STANAG style magazines. The BRN-180 Lower Receivers are manufactured from Aluminum (7075) forgings (not from stamped steel as the original AR-18/AR-180 receiver) with the cosmetic ‘weld’ marks of the stamped originals.

Pros
  • Made in the USA

  • Forged Aluminum (7075) with an anodized finish

  • Uses standard Mil-Spec AR-15 lower receiver parts kits

  • The compact nature of this system with a folding brace or stock allows for discreet carry unlike a standard AR pattern rifle: fire-while-folded design due to the 1913 Picatinny stock/brace mounting section (instead of traditional AR-15 buffer tube threads) is a great stock or pistol brace solutions for the Sig MCX or MPX

  • Zero malfunctions, no clean even after 500 rounds

  • Retro look

  • Mil-spec AR parts fit right-in

  • Gives back the original profile of the AR-180, an incredibly well-made rifle

  • Solid with no fitting issues

  • Tight mating to the upper

  • The Large triangle stock, side-folding adapter, and 1913 mount are a perfect combo

  • The simulated welds have a wrap-around sheet metal look

Cons
  • The Lage 1913 adapter is tight going onto the rear rail section: needs to use a plastic hammer

  • The bolt catch is a bolt, not a rolling pin

  • Difficult to find a side folding stock adapter

  • The mag well is a little touchy

  • The lack of AR180 style stocks to fit the pic rail in the back

  • There’s no detent pin or spring

  • Pin holes are a little sloppy, large gap in the fit

  • The finish is very low quality

  • The pivot pin holes are not in alignment

  • The trigger guard is a little too skinny

  • Aluminum is not as strong as steel

  • One case of the longitudinal mark on the bolt catch

  • Bad machining of the pistol grip area: it is visible to the nake-eyed how crooked and out of spec this area is – needs to dremel the pistol grip meticulously for a long time, just to get it to fit without any gaps vertically or horizontally

  • The rear takedown pin retainer spring seems to get bound up more during installation

  • Struggle with using any type of enhanced bolt catch on this lower: during attempts with the Maritime from Geissele destroyed 3 roll pins, trying to hammer itgo in place, but it wouldn’t budge

  • Terribly sloppy fit to the upper: even with oversized takedown pins and an Accu wedge, there is a huge amount of slack and wiggle between upper and lower

#9 SPIKES TACTICAL STRIPPED LOWER RECEIVER

SPIKES TACTICAL STRIPPED LOWER RECEIVER

View on Brownells

#10 AMERICAN DEFENSE MANUFACTURING STRIPPED LOWER RECEIVER

AMERICAN DEFENSE MANUFACTURING STRIPPED LOWER RECEIVER

View on Brownells

Specification

Make: American Defense Mfg
Model: UIC15
Cartridge: 5.56 mm NATO
Finish: Black
Style: Stripped

The Stripped AR-15 receiver is constructed with an ambidextrous magazine release, bolt catch, bolt release, dimpled takedown, pivot pins, and a 20-degree mag well cut to speed up reloads. Lower Receivers incorporate several next-generation features into their designs: the reinforcing ribs make the well 40 percent stronger than standard, and mil-spec lowers with added weight only of half an ounce.

Pros
  • Made in the USA

  • Modern machining with radii and chamfer cuts to enhance the rifle performance

  • The Teflon-impregnated finish diminishes friction and protects AR rifles from the elements and keeps it running flawlessly

  • The right-side bolt controls are both intuitive and easy to manipulate: there is a release and catch combo

  • ADM is a high-quality mfg

  • Dependable and completely ambidextrous

  • The low-pro style from ADM or CMC allows to use of anti-walk trigger pins

  • The left side controls are oversized and easily manipulated

  • The slide lock/release on the right side

  • The lever slides up and down instead of a button

  • Great price compared to other fully Ambi available as well

Cons
  • During the inspection, the FCG pin holes are out of spec (too small)

#11 KE ARMS STRIPPED LOWER RECEIVERS POLYMER

KE ARMS STRIPPED LOWER RECEIVERS POLYMER

View on Brownells

Specification

MAKE: AR-15
Style: Striped
Calibers: .223/5.56mm NATO, .300 Blackout, 6.5mm Grendel and 6.8mm SPC, not recommended for .458 SOCOM, .50 Beowulf or .50 BMG

The monolithic polymer lowers can be paired up with 9mm blowback systems with a minimum buffer weight of 5.4 oz (carbine). The AR-15 style lower receivers consist of the pistol grip, trigger, buffer tube, a 13-inch (LOP) buttstock, KP-15 Selector Detent, Butt plate, Pivot, Take Down Pins, and 5/64-in Roll Pin to Retain Buffer Detent. The lowers accept a carbine buffer with spring, a standard bolt catch; they can’t use the PDQ lever. The KP-15 stripped lower receiver is manufactured from injection molded, 30% glass-filled nylon, and available in Black or Flat Dark Earth coating.

Pros
  • Handy and lightweight

  • Lifetime warranty

  • Affordable price

  • Accepts only standard carbine buffers and round springs or the JP SCSS in the KP-15

  • Simple mounting: no issues with fitting the roll pin horizontally to retain the buffer detent

  • Sturdy all-in-one molded assembly

  • Great balance and sling attachment points

  • Pre-drilled in front for QD socket inserts

  • The enhanced durability of the takedown and pivot pins with built-in detents due to the lack of spring and detent holes

  • Good ergonomics and length of pull

  • The fit with the lower and upper components is precise and easy

  • The FDE version features the same quality as the black one

  • Compatible with all Mil-Spec fire control groups, cassette-style match triggers and flared mag well

  • M-LOK Slots at the rear of stock for sling attachment

  • Fit, function, aesthetics, and utility are great

  • A safety from KE Arms is optimized for the KP-15

Cons
  • The deformity in the trigger well and upper pin area is likely because the casting and molding unit was not cooled properly

  • The length of pull is shorter than expected

  • The receiver retainer pins, which must be inserted from the receiver’s left side, can be lost outdoor, hunting, or in any tactical situation because they have a ball detent embedded in them allowing them to be easily pulled out

  • The detent that holds the safety selector in place is tiny: it’s easy to lose it as well

  • The alignment of the two halves is not perfect

  • A small screwdriver is necessary to get to and knock off some areas

  • Have to file the space where the frontal pivot pin holds the upper receiver just to insert the front pivot pin

  • The included pin is entirely too short and doesn’t seem to be fully supported or secure

#12 FOXTROT MIKE PRODUCTS LOWER RECEIVER STRIPPED

FOXTROT MIKE PRODUCTS LOWER RECEIVER STRIPPED

View on Brownells

Specification

Cartridge: 9 mm Luger
Make: AR-15
Style: Stripped

The FM-9 Billet Lower Receivers are completely stripped and ready for all standard mil-spec AR-15 parts, making them a solid starting point for a novel PCC build. The stripped receiver is compatible with all 9-mm Glock-style mags such as Magpul and features a last-round bolt hold-open. These lowers are made from billet Aluminum (7075-T6) with an all-black finish. The ejector is rubbed on the BCG.

Pros
  • Made in the USA

  • Lifetime warranty

  • Lightweight

  • Budget-friendly

  • The mag well is well cut-out

  • Set screw for rear takedown pin tension

  • Aesthetically pleasing

  • Functioned well

  • The side charging works flawlessly, as well as the LBHO

  • Works awesome with Magpul mags and factory Glock mags

  • Quality machining and finish

  • The Last-round bolt hold open works flawlessly when used with FM Products 9mm BCG, buffer, and spring

  • The upper and lower fit well without wobble as well as all components

  • Outst and ing customer service

  • Nicely flared magwell

  • Solid LBHO design

  • The 9mm lower receiver is Mil-Spec fitting a rock river lower parts kit and a KVP 7.5 oz buffer kit

  • Easily disassembled for Cerakote

  • Comes with a mag and bolt releases

  • Well-paired with the Foxtrot Mike nickel boron trigger group

  • The trigger guard is large enough for gloves

Cons
  • Lack of depth of the logos and the safety marks

#13 STAG ARMS – AR-15 STRIPPED LOWER RECEIVER

STAG ARMS - AR-15 STRIPPED LOWER RECEIVER

View on Brownells

Specification

Cartridge: 5.56 mm NATO
Weight: about .55 lb or 9.6 oz
Style: Stripped
Hammer/Trigger pin size: Mil-spec small pin .154 in
Pivot/Takedown Pin Size: Mil-spec small pin .250 in

The multi-caliber Ambi standard lower receivers come with a drilled front trigger guard pinhole, a spring-loaded detent that fits in a hole on one side only. The rear is the only end, accepting an actual pin that goes all the way through. The Lower Receiver is stamped for the state of CT and fits a BCM upper receiver. The Lowers are manufactured from Aluminum (7075 T6) with a Type 3 Hard Coat Black Anodized finish.

Pros
  • Budget lower

  • Made in the USA

  • Not only left-handed lower but it can also be used for any lower receiver build

  • Effortless building as everything is in the spec

  • A pleasant bonus is a tension screw, which isn’t indicated in the description

Cons
  • Not a bad finish but with a decent amount of mars underneath

#14 ANDERSON MANUFACTURING STRIPPED LOWER RECEIVER

ANDERSON MANUFACTURING STRIPPED LOWER RECEIVER

View on Brownells

Specification

Cartridge: 223 Remington, 5.56 mm NATO
Make: AR-15
Style: Stripped
Hammer/Trigger pin size: Mil-spec small pin .154 in (3.9mm)
Pivot/Takedown Pin Size: Mil-spec small pin .250 in (6.3mm)

The stripped, semi-auto lower receiver delivers the perfect platform for building the AR-15 rifle or carbine. The receiver is covered with Mil-Spec, hard anodized to add extra durability to the receiver walls, and ensures superb abrasion resistance for rugged field use. FFL should be bought additionally. The bolt catch is a bit snug but it’ll loosen up over time. The lower trigger pin isn’t very tight, so it needs an anti-walkout pin for it.

Pros
  • Made in the USA

  • Drop-in installation of Mil-Spec, aftermarket parts due to the precision machining

  • High-strength, Aluminum (7075 T6) forging ensures dependable performance and excellent sturdiness

  • Operates fine for multiple calibers/applications

  • The fitting is without rattle

  • Great price point

  • Paired perfectly with the A1 upper

  • Everything operates smoothly as silk

  • The pivot and take-down pins fit perfectly with no slop, but I can push them past the detents with my thumb using a good hard push

  • Exactly as advertised

  • The fit between the upper and lower is precise and zero gap

  • The tube kit is mil-spec so a Magpul collapsible stock can be used

  • Nice tool for installing roll pins (no hammer and slipping punches to mar the finish)

  • Good finish and markings

  • No blemishes

  • Holes are where they should be

Cons
  • The issues with the rear takedown pin hole: it can be too large from the factory – the pin can slide out when the rifle is tipped on its side or be small, so it needs to turn it down a bit to get the pin in that can cause a slight misalignment with holes for pivot and takedown pins

#15 ATI STRIPPED LOWER RECEIVER

ATI STRIPPED LOWER RECEIVER

View on Brownells

#16 KE ARMS LLC STRIPPED LOWER RECEIVER

KE ARMS LLC STRIPPED LOWER RECEIVER

View on Brownells

Specification

Cartridge: 9 mm Luger
Style: Stripped

The 9mm AR-Style Lower allows the reliable building of a pistol-caliber carbine. The KE Arms KE-9 Lower Receiver is machined from billet Aluminum (7075) and covered with an all-black, Class 2, hard-anodized to make it sturdier. There is no last-round bolt hold-open (LRBHO) unless a linkage system is incorporated into the upper receiver. The standard bolt catch manually locks the bolt to the rear, but the Glock magazine followers will not actuate the catch. Some 9mm upper receivers will include this link age.

Pros
  • Made in the USA

  • Designed specifically for a 9mm PCC, and it’s set up to accept all of today’s OEM and aftermarket Glock-style mags

  • The tight tolerances within military specifications

  • Compatible with all mil-spec 9mm upper receivers

  • Comes with the magazine catch and an ejector

  • The correct specs for the FCG

  • No defects and the finish is flawless

  • Fit perfectly with an Odin Works Billet upper

  • After 1k of testing, the lower receiver runs flawlessly with a Spikes Tactical FCG

Cons
  • Not yet

#17 RUGER – AR-15 STRIPPED LOWER RECEIVER

RUGER - AR-15 STRIPPED LOWER RECEIVER

View on Brownells

#18 KE ARMS LLC BILLET STRIPPED LOWER RECEIVER

KE ARMS LLC BILLET STRIPPED LOWER RECEIVER

View on Brownells

Specification

Cartridge: 5.56 mm NATO
MAKE: AR-15
Style: Stripped

A Flared AR-15 Lower has a must-have feature: a flared magazine well allows shooters to get a rifle back into action promptly. The stripped unit is machined from 7075 billet Aluminum and treated with an all-black, Class 2 hard-anodized finish for enhanced durability. The KE Arms KE-15 receiver is compatible with all M16- and M4-style upper receivers.

Pros
  • Made in the USA

  • Speeds up reload by incorporating a flared mag well into the fast-action drills

  • Tight tolerances within military specifications

  • All mil-spec parts function well in this lower

  • Operates reliably with SureFire 60- and 100-round mags, as well as higher-capacity drums from Magpul and X Products

Cons
  • Not yet

#19 ANGSTADT ARMS STRIPPED LOWER RECEIVER FOR GLOCK

ANGSTADT ARMS STRIPPED LOWER RECEIVER FOR GLOCK

View on Brownells

#20 ANGSTADT ARMS 9MM LOWER RECEIVER FOR GLOCK

ANGSTADT ARMS 9MM LOWER RECEIVER FOR GLOCK

View on Brownells

#21 AERO PRECISION STRIPPED LOWER RECEIVER

AERO PRECISION STRIPPED LOWER RECEIVER

View on Brownells

Specification

Cartridge: 5.56 mm NATO
MAKE: AR-15
Style: Stripped

The Mil-spec, small pin, the semi-auto lower receiver is multi-caliber chambered for rifle builds on 5.56/.223, 9mm Luger, 6.5mm, 300 AAC Blackout, 6.8mm, or others to fit the standard AR-15 receiver. The strapped lowers can be the foundation Holes, inletting and pin locations that have been cut to final dimensions and accept standard AR-15 mags and parts.

The Stamped safe and fire switch position indicators ensure the rifle service state.

Pros
  • Stamped “CalMulti”

  • Precision machined from a durable Aluminum forging (7075 T6)

  • Awesome adjustment set screw eliminates the need for a wedge: helps take out play between the upper and lower assemblies

  • Great flare at the bottom of the magazine well

  • Everything fits perfectly

  • The upper tensioning set screw is a nice addition

  • The finish is beautiful

  • The lower looks great with good tolerances

  • Forged receiver

  • The coating is color matched to the stripped Aero Precision upper

  • Great attention to details like the threaded hole for the rear takedown pin

Cons
  • The case of slightly blemished finish, which doesn’t match the glossy black

  • The issue with a Magpul gen 3 magazine in it: the mag follower would override bolt catch (with several ones) and wouldn’t properly connect with the follower

  • Bolt catch channel and area around it is milled incorrectly and noticeably thicker than on other known good lowers

#22 FOXTROT MIKE PRODUCTS BILLET LOWER RECEIVER

FOXTROT MIKE PRODUCTS BILLET LOWER RECEIVER

View on Brownells

Specification

Cartridge: 45 Auto (ACP)
Style: Stripped
Make: AR-15

The Billet .45 Auto lower receiver comes with a pre-installed proprietary bolt release and magazine one. The AR-15 FM-45 Stripped lowers are constructed to feed from Glock® .45 Auto mags, featuring the last round bolt hold open. The stripped unit is made from 7075-T6 billet aluminum with an all-black finish.

Pros
  • Fit and finish are great

  • Made in the USA

  • Competitive price

  • Lifetime warranty

  • Great upgrade to 45 ACP in an AR pistol or rifle

  • Functions perfectly

  • Holds the bolt open after the last shot

  • The magazine release and bolt hold open are already installed so there’s not too much more to install to complete

  • Good price

  • The finish is top-notch

  • The LRBHO is a nice feature

  • Neat mechanism

Cons
  • A design flaw: the ejector is held in place by a single set screw (while competitors use two), it can loosen up after shooting several hundred rounds

  • F.M. mills the mag well for the G21 mags, but mills backward two side cuts, unlike their competitors: this cut is so deep rearward, that it cuts into the whole side wall of the threaded hole for the ejector set screw thus oxygen always creeps in preventing thread locker from working properly

  • The sidewall is missing, meaning the set screw is missing half the frictional surface to stay screwed

#23 LEWIS MACHINE & TOOL DEFENDER LOWER RECEIVER

LEWIS MACHINE & TOOL DEFENDER LOWER RECEIVER

View on Brownells

FAQ

What is AR 15 Lower Receiver?
Lower Receiver is a component of an AR-15 rifle. It is a metal frame that holds all the other parts of the rifle together. It is also the part of the rifle that is registered with the government.
What is the function of lower receiver?
The main function is to provide a platform for the other parts of the rifle to be attached to. It also houses the trigger group and provides a place for the magazine to be inserted.
What are the benefits of lowers?
Some benefits include increased accuracy, easier maintenance, and the ability to change out parts without affecting the rest of the rifle.
What are the different types of lowes?
There are three main types of lower receivers: stripped, complete, and billet. Billet lower receivers are made from a single piece of aluminum, while stripped and complete lower receivers are made from two pieces of aluminum.
What is the difference between a stripped and a complete lower receiver?
A stripped lower receiver is one that does not have any parts installed on it. This means that the buyer will need to purchase and install all the other parts themselves. A complete lower receiver comes with all the other parts already installed.

Conclusion

As you can see, there is a lot of different stripped AR 15 lower receivers on the market. It is important to do your research before purchasing one in order to make sure you are getting the best quality for your money. We have highlighted some of the best options on the market and hope that this information will help you make an informed purchase. Do you have a favorite stripped AR 15 lower receiver? Let us know in the comments below.

The stripped lower is the only part, which is regarded and registered as a firearm, as this Lower Receiver can be converted into a rifle in the future. So, it’s better to consult an FFL (Federal Firearms Licensed) dealer for legal purchasing and to avoid any issues.

Tags: #best stripped ar 15 lower receiver / #best stripped lower receiver ar 15 / #ar 15 stripped lower receiver best / #who makes the best ar 15 stripped lower receiver / #best stripped lower receiver for the money

0 0 votes
Article Rating
Subscribe
Notify of
0 Comments
Inline Feedbacks
View all comments