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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PWS MK1 MOD 2-M COMP RIFLE LOWER
Primary Weapons Systems
MSRP: $689.94$599.95Primary Weapons Systems was formed by firearm enthusiasts in 2008. Starting out by producing muzzle devices, they tested their compensators on all different types of rifles - from M4s to AK-47s. After using both styles of rifles in testing with high...MSRP: $689.94$599.95 -
LANTAC RVN BLLT BUILDER SET 13.5 RL
LanTac USA LLC
MSRP: $786.59$683.99The 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: $786.59$683.99 -
LANTAC RVN BLLT BUILDER SET 12.5 RL
LanTac USA LLC
MSRP: $781.99$679.99The 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: $781.99$679.99 -
LANTAC RVN BLLT BUILDER SET 10.5 RL
LanTac USA LLC
MSRP: $773.94$672.99The 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$672.99 -
LANTAC RVN BLLT BUILDER SET 6.75 RL
LanTac USA LLC
MSRP: $754.39$655.99The 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: $754.39$655.99 -
Out of stock
NOVESKE UPPER/LOWER SET GEN 4 BLK
Noveske
MSRP: $826.56$718.75Noveske Rifleworks is an American firearms company. They are headquartered in Grants Pass, Oregon and are known for their work with the AR-15 platform and the KeyMod system.MANUFACTURER: NoveskeMPN: 04000880MODEL: Gen 4Action: Semi-automaticDescription:...MSRP: $826.56$718.75 -
Out of stock
NOVESKE CHAINSAW LOWER RCVR COMPLETE
Noveske
MSRP: $749.42$651.67Noveske Rifleworks is an American firearms company. They are headquartered in Grants Pass, Oregon and are known for their work with the AR-15 platform and the KeyMod system.MANUFACTURER: NoveskeMPN: 04000853MODEL: ChainsawAction:...MSRP: $749.42$651.67 -
Out of stock
LWRC IC LOWER 556NATO BLK
LWRC
MSRP: $789.53$686.55The LWRC IC lower is fully ambidextrous, allowing the shooter to access all controls on the lower without needing to change their grip. Machined directly into the receiver to maximize ergonomics and function are an enhanced, flared magwell and...MSRP: $789.53$686.55 -
Out of stock
GGP AR10 BILLET RCVR SET W/15 HG FDE
Grey Ghost Precision
MSRP: $883.43$768.20Now 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$768.20 -
Out of stock
GGP AR10 BILLET RCVR SET W/15 HG BK
Grey Ghost Precision
MSRP: $783.66$681.44The new MKII version of the GGP-P Series brings a new level of customizability never before seen in their 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...MSRP: $783.66$681.44 -
Out of stock
FIGHT SCR RAIDER LOWER 223/556 BLK
FightLite
MSRP: $742.89$645.99Now you can assemble your own custom, rifle caliber - pistol powerhouse with the SCR Pistol Lower Receiver Assembly! Includes everything that's needed; simply add your choice of AR/M4 upper, magazine, bolt and firing pin and you've got it made with no...MSRP: $742.89$645.99