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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Out of stock
GGP FORGED LOWER RCVR CORNERSTONE
Grey Ghost Precision
MSRP: $146.83$105.00The fit and finish of the Cornerstone will provide the right start to a reliable and strong AR build. Machined to tighter than Mil-Spec tolerance, the critical tooling dimensions are held to within +/ - .001".MANUFACTURER: Grey Ghost PrecisionMPN:...MSRP: $146.83$105.00 -
Out of stock
GGP BILLET LOWER RCVR
Grey Ghost Precision
MSRP: $170.65$122.00The MKII version of the GGP-S Series brings a new level of customizability never before seen in our rifle receivers. Not only can you build your own version of the Heavy or Light rifle, but you can use your favorite aftermarket parts to complete the...MSRP: $170.65$122.00 -
GGP AR10 BILLET RCVR SET W/15 HG FDE
Grey Ghost Precision
MSRP: $883.43$0.00Now you can start your next AR10 build right with the GGP MKII AR Builder's Billet Receiver Set! Includes a GGP MKII HEAVY Billet 7075-T651 Lower Receiver, GGP MKII Billet 7075-T651 Upper Receiver, and a GGP 15" Handguard. The new MKII version of the...MSRP: $883.43$0.00Qty in Cart: 0Quantity:Price:MSRP: $883.43$0.00Subtotal: -
Out of stock
FORTIS LICENSE GEN II AR15 LWR STD
Fortis Manufacturing Inc.
MSRP: $279.00$224.00Introducing the Fortis License Lower Receiver. Made from 7075 T6 billet aluminum. The GEN II has all the same features from the first edition, but with added integrated carbon fiber.MANUFACTURER: Fortis Manufacturing, Inc.MPN: L-7075-GEN2-SMODEL: License...MSRP: $279.00$224.00 -
Out of stock
FORTIS LICENSE GEN II AR15 LWR AMBI
Fortis Manufacturing Inc.
MSRP: $296.81$238.00Introducing the Fortis License Lower Receiver. Made from 7075 T6 billet aluminum. The GEN II has all the same features from the first edition, but with added integrated carbon fiber.MANUFACTURER: Fortis Manufacturing, Inc.MPN: L-7075-GEN2-AMODEL: License...MSRP: $296.81$238.00 -
Out of stock
FN FN15 STRPD LWR RCVR M16 MILITARY
FN America
MSRP: $201.60$144.00Tailored after FN's production of U.S. Military issued carbinesand made to FN's exacting specification, the replica strippedreceivers are the heart of an authentic M4 or M16 build. Forgedfrom 7075-T6 aluminum, machined, and broached to preciseMIL-SPEC...MSRP: $201.60$144.00 -
Out of stock
FN FN15 STRPD LWR RCVR M4 MILITARY
FN America
MSRP: $201.60$144.00Tailored after FN's production of U.S. Military issued carbines and made to FN's exacting specification, the replica stripped receivers are the heart of an authentic M4 or M16 build. Forged from 7075-T6 aluminum, machined, and broached to precise...MSRP: $201.60$144.00 -
Out of stock
DBF DB15 LOWER RCVR MULTI CAL BLK
Diamondback Firearms
MSRP: $91.00$61.00Diamondback Firearms is proud to announce its line of DB15 rifles made entirely in the USA! Starting with the tried-and-true, U.S. Military-proven gas-impingement system and using only the highest quality components machined in Diamondback's CNC facility...MSRP: $91.00$61.00 -
CMMG LOWER SUB-ASSY MK9 BLK
CMMG
MSRP: $227.78$0.00As CMMG's oldest 9mm platform, the Mk9 is continuing to go through changes to become even better than before. Introducing, the new and improved Mk9, now utilizing CMMG's patented Radial Delayed Blowback operating system. Radial Delayed Blowback...MSRP: $227.78$0.00Qty in Cart: 0Quantity:Price:MSRP: $227.78$0.00Subtotal: -
Out of stock
CMMG LOWER MK4/AR15 BLK
CMMG
MSRP: $160.26$114.00Precision machined from forged 7075 T6 aluminum, the CMMG Mk4 AR-15 stripped lower receiver is the quality mil-spec lower ready to be the foundation for your next build. The Mk4 stripped lower comes standard in a Armor Black finish and can be assembled...MSRP: $160.26$114.00 -
Out of stock
BAD WORKHORSE LOWER RECEIVER BLK
Battle Arms Development
MSRP: $175.00$125.00Battle Arms Development, Inc. (B.A.D. Inc.) is a design, research, and development firm incorporated in 2009 with a focus on small arms design including firearm components, tools, gauges, accessories, and complete weapon systems. Their Workhorse lower...MSRP: $175.00$125.00 -
Out of stock
BAD XIPHOS LOWER RECEIVER 9MM GLK
Battle Arms Development
MSRP: $298.75$239.00BATTLEARMS XIPHOS Dedicated Lower Receiver. Uses GLOCK Magazines - Small Frame Glock Calibers. Is not compatible with CMMG Delayed Blowback systems that use an AR Style magazine and Bolt Carrier Group.MANUFACTURER: Battle Arms DevelopmentMPN:...MSRP: $298.75$239.00