Lower Receivers
Gas & Brass Armory offers a full selection of AR-15 lower receivers in Brandon, FL—perfect for your next rifle build or upgrade. Choose from trusted brands like Aero Precision, Anderson, BCM, and more. Whether you're looking for stripped lowers for a custom build or complete lowers ready to pin on your upper, we have durable, mil-spec components to fit your needs. Visit us in-store or shop online with confidence.
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AERO AR15 STRIPPED LOWER GEN 2 FDE
Aero Precision
MSRP: $195.99$140.00The Aero Precision AR15 Gen 2 Stripped Lower Receiver is the perfect base for your custom AR15 build. Machined to mil-spec dimensions, these lowers work with standard AR15 components and ensure the highest quality with a correct component interface...MSRP: $195.99$140.00 -
AERO M5 AR10 STRIPPED LWR BLK
Aero Precision
MSRP: $202.99$145.00Aero Precision's 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.MANUFACTURER: Aero PrecisionMPN: APAR308003CMODEL: M5Action:...MSRP: $202.99$145.00 -
AERO X15 AR15 STRPD LOWER GEN2 BLACK
Aero Precision
MSRP: $167.99$120.00The Aero Precision X15 AR15 Gen 2 Stripped Lower Receiver is the perfect base for your custom AR15 build. Machined to mil-spec dimensions, these lowers work with standard AR15 components and ensure the highest quality with a correct component interface...MSRP: $167.99$120.00 -
BCM PSTL LOWER GROUP W/RCVR EXT 556
Bravo Company
MSRP: $603.75$525.00This BCM Receiver is machined from an aluminum forging 7075-T6, Hardcoat Anodized (per MIL-A-8625F, Type III, Class 2)MANUFACTURER: Bravo CompanyMPN: LRG-PISTOLMODEL: BCMAction: Semi-automaticCaliber: 556NATOGrips: BCMType: Complete Lower ReceiverColor:...MSRP: $603.75$525.00 -
Out of stock
WILSON COMBAT MIL-SPEC LOWER RECEIVER TRLOWERANO
Wilson Combat
$103.00The Billet AR15 MilSpec features 7075T6 forgings machined to MilSpec Plus tolerances and a MilSpec type 3 hard anodize black finish. Good match with Wilson BilletAR upper receivers and any standard AR barrel. Note Requires a lower parts kit buffer stock...$103.00 -
S&W RECEIVER COMPLETE LOWER RECEIVER 812002
Smith & Wesson
$0.00Smith Wesson MP 15 Complete AR15 5.56 lower receiver with standard trigger group collapsible stock. It comes with standard AR15 grip.$0.00Qty in Cart: 0Quantity:Price:$0.00Subtotal: -
S&W RECEIVER LOWER RECEIVER 812000
Smith & Wesson
$0.00Factory Smith Wesson AR15 Stripped Lower Receiver marked MP 15. .223 Remington5.56 NATO. If there is an AR15 planned in the future build it on a great base with this lower.$0.00Qty in Cart: 0Quantity:Price:$0.00Subtotal: -
RUGER AR-556 LOWER RECEIVER 8516
Ruger
$0.00Rugers AR556 Lower has a sixposition telescoping Magpul MOE carbine buttstock and MilSpec buffer tube which allows the rifle to be properly sized for different shooters. The ergonomic pistol grip features an extended trigger reach for more precise...$0.00Qty in Cart: 0Quantity:Price:$0.00Subtotal: -
RUGER AR-556 LOWER RECEIVER 8506
Ruger
$0.00This Ruger AR lower receiver makes a great centerpiece component for those looking to build their own modern sporting rifle. It is CNCmachined from forged 7075T6 aluminum with a hardcoat anodized finish. NOTE Requires a lower parts kit buffer stock of...$0.00Qty in Cart: 0Quantity:Price:$0.00Subtotal: -
Out of stock
RISE ARMAMENT ADVANCED PERFORMANCE RABLR223535
Rise Armament
$430.00The RISE Armament RA 535 Advanced Performance Trigger helps fire more quickly and accurately. Its highly regarded as the best trigger. Now available with a black trigger blade the RA535 APT will not only improve the performance of rifles but the look of...$430.00 -
Out of stock
GRIFFIN ARMAMENT MK2 LOWER RECEIVER MK2AL
Griffin Armament
$209.00The Griffin MK2 Ambi Lower is the ideal foundation for your next rifle build. Precisely machined from highgrade 7075T6 aluminum to exact tolerances the MK2 lower is a premium rifle platform offering proper fitment and utility with milspec lower...$209.00 -
Out of stock
FN FN-15 LOWER RECEIVER 20100466
FN
$129.00The Catch 22 Ti is a lightweight tough and quiet rimfire suppressor reducing muzzle blast from all 22 LR firearms. A perfect pair with the FN 502 Tactical reliable feed and extraction across most ammunition types is the new standard maintaining...$129.00