AR-15 LOWER RECEIVERS

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Caliber

5.56mm (1)
Multi (4)

Color

Black (2)
Blue (1)
FDE (1)
Flat Dark Earth (2)
Orange (1)

Finish

Anodized (2)
Cerakote (2)

Aero Precision M4E1 Carbine Complete Lower Receiver w/A2 Grip - BLK

Includes:

M4E1 Stripped Lower Receiver - Anodized Black
A2 Grip - Black
Mil-spec Lower Parts Kit
AR15 Carbine Receiver Extension
AR15 Carbine Buffer and Spring
These parts are installed

Must ship to a U.S. FFL dealer

APAR600112

Out of stock

$179.99

Aero Precision M4E1 Upper/Lower Receiver Set - BLK

Aero Precision M4E1 Upper and Lower receiver set for the AR15.

Threaded Bolt Catch Roll Pin - Allows for simple installation of the bolt catch and virtually eliminates the chance to damage the finish during installation (pin included).
Integrated Trigger Guard - Eliminates the possibility of breaking the trigger guard tabs by integrating the trigger guard into the lower, creating a stronger more rigid platform to build upon.
Upper Tension Screw - Allows users to fine tune the fit of the upper and lower receiver using a nylon tipped tensioning set screw inserted in the grip tang of the lower receiver. This provides a tight fit with any standard AR15 upper receiver.
Threaded Takedown Pin Detent Recess - Allows user to easily install the Takedown Pin detent and spring with the use of a 4-40 set screw (no more launching detents across the room).
Increased Magwell Flare - Increased the flare of the magwell to aid in quick and efficient magazine changes

New enhanced forging that gives the upper receiver a "billet look"
New picatinny profile that blends seamlessly with our Enhanced and ATLAS Series Handguards
M4 Feedramps
.250 takedown pin holes
Laser engraved T-marks

Must ship to a U.S. FFL dealer

APCS100177

Out of stock

$189.99

Aero Precision M5 .308 Stripped Lower Receiver - BLK

Our M5 .308 Stripped Lower Receiver helps you build a big-bore AR from the ground up. Mil-spec dimensions and coating ensure the highest quality and correct component interface. DPMS cut.

Features:

Works with standard AR 308 components and magazines
Upper Tension Screw - Allows users to fine tune the fit of the upper and lower receiver through the use of a nylon tipped tensioning set screw inserted in the grip tang of the lower receiver.
Rear takedown pin detent hole is threaded for a 4-40 set screw
Bolt catch is threaded for a screw pin (no roll pin needed)
Integrated trigger guard
Selector markings will work with 45, 60 or 90 degree safety selectors
Accepts Battle Arms Development short throw safety selectors, but will work with any standard selector
No gap with aftermarket pistol grips

Includes:

Stripped M5 (.308) Lower Receiver in Anodized Black
Nylon tipped tensioning set screw

Must ship to a U.S. FFL dealer

APAR308003C

Out of stock

$169.99

Aero Precision M5 .308 Stripped Lower Receiver - BLK - BLEM

M5 .308 Stripped Lower Receiver helps you build a big-bore AR from the ground up. Mil-spec dimensions and coating ensure the highest quality and correct component interface.

Features:

Works with standard AR 308 components and magazines
Upper Tension Screw - Allows users to fine tune the fit of the upper and lower receiver through the use of a nylon tipped tensioning set screw inserted in the grip tang of the lower receiver.
Rear takedown pin detent hole is threaded for a 4-40 set screw
Bolt catch is threaded for a screw pin (no roll pin needed)
Integrated trigger guard
Selector markings will work with 45, 60 or 90 degree safety selectors
Accepts Battle Arms Development short throw safety selectors, but will work with any standard selector
No gap with aftermarket pistol grips

Includes:

Stripped M5 (.308) Lower Receiver in Anodized Black
Nylon tipped tensioning set screw

This product is blemished. Blemishes may include:

Plating inconsistencies
Pits
Scratches
Dents
Flaws in finish

Blemished products are fully functional, they just didn't meet our high standards. They are a great product at a discounted price for someone who doesn't mind a slight imperfection.

Must ship to a U.S. FFL dealer

APAR308003BC

Out of stock

$109.99

Aero Precision M5E1 Builders Set 15" M-Lok Handguard - BLK

The pieces you need to start building your own M5E1 rifle chambers in .308. This set includes an M5 stripped lower receiver, M5E1 upper receiver and Enhanced Gen 2 15" M-Lok handguard. All three pieces are finished in mil-spec Anodized Black.

Must ship to a U.S. FFL dealer

APCS100078S

Out of stock

$399.99

BCM Lower w/ BCM Stock Mod 0 - BLK

Bravo's BMC Lower Receiver Group with Stock has a carbine h buffer type, a BCM Mod 3 pistol grip, and a BCM enhanced trigger guard.

Must ship to a U.S. FFL dealer

LRG-STK-MOD-0-BLK

Out of stock

$449.95

Rock River Arms AR-15 5.56mm Lower Receiver - COMPLETE ASSEMBLY, NM TRIGGER

Rock River Arms semi-auto AR15 forged lower receiver assembly complete with a six postition collapsible stock and a National Match two stage trigger. Lower is mil spec and uses standard take-down and fire control pins. Receiver is mil-spec hard coat anodized aircraft grade 7075 T6 aluminum, matte black finish.

* Must ship to an FFL Dealer *

AR0990C

Out of stock

$309.99

Rock River Arms AR-15 5.56mm Lower Receiver - COMPLETE ASSEMBLY, STD TRIGGER

Rock River Arms semi-auto AR15 forged lower receiver assembly complete with a six postition collapsible stock and a standard single stage trigger. Lower is mil spec and uses standard take-down and fire control pins. Receiver is mil-spec hard coat anodized aircraft grade 7075 T6 aluminum, matte black finish.

* Must ship to an FFL Dealer *

AR0901C

Out of stock

$279.00

Sig Sauer M400, 516 Stripped Lower - BLK

Factory Sig Sauer M400 516 AR15 stripped lower receiver.

Must ship to a U.S. FFL dealer

LWR-M400-516-STRIPPED

Out of stock

$129.95

Timber Creek Outdoors Enforcer Build Kit - Blue

Timber Creek Outdoors complete AR15 build kit includes:

Oversized Ambi Charging Handle

15" Ultra Light Hand Guard - MLOK

Forward Assist

Billet Dust Cover

Enforcer AR Pistol Grip

Oversized Trigger Guard

Ambi Safety

Extended Magazine Release

Take Down Pins

QD End Plate

Buffer Tube

Low Profile .750 Gas Block

.223 Heat Breaker

TCO-EK-B

Out of stock

$599.99

Timber Creek Outdoors Enforcer Build Kit - Orange

Timber Creek Outdoors complete AR15 build kit includes:

Oversized Ambi Charging Handle

15" Ultra Light Hand Guard - MLOK

Forward Assist

Billet Dust Cover

Enforcer AR Pistol Grip

Oversized Trigger Guard

Ambi Safety

Extended Magazine Release

Take Down Pins

QD End Plate

Buffer Tube

Low Profile .750 Gas Block

.223 Heat Breaker

TCO-EK-OA

Out of stock

$599.99

Timber Creek Outdoors Enforcer Build Kit - Red

Timber Creek Outdoors complete AR15 build kit includes:

Oversized Ambi Charging Handle

15" Ultra Light Hand Guard - MLOK

Forward Assist

Billet Dust Cover

Enforcer AR Pistol Grip

Oversized Trigger Guard

Ambi Safety

Extended Magazine Release

Take Down Pins

QD End Plate

Buffer Tube

Low Profile .750 Gas Block

.223 Heat Breaker

TCO-EK-R

Out of stock

$599.99

AR-15 Lower Receivers

Find the Assembly Parts You Need for Your AR-15 Lower Receiver

Creating a high performance rifle can lead to a preoccupation with acquiring parts. Don’t spend hours on different sites when we have the top quality AR-15 lower receivers and parts you need for inspired building. Gain well-crafted equipment for enthusiasts and pros that can be counted on for a good fit, durable workmanship, and excellent shooting for years. Our line-up of AR-15 lower receivers and parts includes both stripped parts and assemblies. Access forged receivers manufactured from mil-spec, hard coat anodized aircraft grade aluminum. Aero Precision's popular lower receiver, stripped for the semi-auto AR15, is made with these materials, and a special coating adds enhanced durability. Look to us for receivers, plus comprehensive parts sets, and field repair kits. Items such as push button pivot pins, trigger assemblies, and hammer pin sets are within our AR-15 parts pages.

Quality AR-15 Lower Receiver Assembly Offers Peak Performance

If you’ve got competition fever, an AR-15 lower receiver assembly comes complete with a collapsible stock with a high quality single or two stage trigger. Or order a drop-in, match grade modular trigger assembly for your rifle that can be installed in minutes. Prominent names in lower receiver manufacturing can be found on our site, including Areo Precision, Rock River Arms, CMMG, DPMS and Stag Arms. If you’re building your own gun, follow the lead of top rifle manufacturers and choose equipment for the long haul. You want a dependable, consistent performer. When it comes to field duty, a forged AR-15 lower receiver assembly shares a robust strength that’s greater than a cast receiver. Our manufacturers, like DPMS, use forged high grade aluminum, anodized to mil-spec, in their lower receiver assemblies. Remember, our rifle section includes exciting choices in AR-15s that are range ready now.

AR-15 LOWER RECEIVERS