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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LANTAC RVN BLLT BUILDER SET 10.5 RL
LanTac USA LLC
MSRP: $773.94$0.00The Lantac AR-15 builder set includes an upper and lower receiver along with an M-LOK handguard. Their Raven billet receiver set is machined from certified 7075-T6 aluminum and finished with Type 3 Hardcoat. The lower receiver features a 45-degree BAD...MSRP: $773.94$0.00Qty in Cart: 0Quantity:Price:MSRP: $773.94$0.00Subtotal: -
LANTAC SF FRGD BUILDER SET 15 RL
LanTac USA LLC
MSRP: $603.16$0.00Lantac AR-15 builder set includes an upper and lower receiver along with an M-LOK handguard. Their forged receiver set is packed with 'above milspec' features, making it an ideal choice for shooters seeking an upgraded configuration while maintaining a...MSRP: $603.16$0.00Qty in Cart: 0Quantity:Price:MSRP: $603.16$0.00Subtotal: -
LANTAC SF FRGD BUILDER SET 10.5 RL
LanTac USA LLC
MSRP: $579.01$0.00Lantac AR-15 builder set includes an upper and lower receiver along with an M-LOK handguard. Their forged receiver set is packed with 'above milspec' features, making it an ideal choice for shooters seeking an upgraded configuration while maintaining a...MSRP: $579.01$0.00Qty in Cart: 0Quantity:Price:MSRP: $579.01$0.00Subtotal: -
GGP AR-15 RECEIVER SET
Grey Ghost Precision
MSRP: $458.85$0.00The new MKII version of the GGP-S Series brings a new level of customizability never before seen in GGP rifle receivers. The Billet Receivers are precisely machined from 7075-T6 Aluminum for a perfect fit. The lower receiver includes an ambidextrous bolt...MSRP: $458.85$0.00Qty in Cart: 0Quantity:Price:MSRP: $458.85$0.00Subtotal: -
GGP AR-10 RECEIVER SET
Grey Ghost Precision
MSRP: $629.51$0.00The new MKII version of the GGP-S Series brings a new level of customizability never before seen in GGP rifle receivers. The Billet Receivers are precisely machined from 7075-T6 Aluminum for a perfect fit. The lower receiver includes an ambidextrous bolt...MSRP: $629.51$0.00Qty in Cart: 0Quantity:Price:MSRP: $629.51$0.00Subtotal: -
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