AR15 Parts
Gas & Brass Armory is your trusted source for AR-15 parts in Brandon, FL. Whether you're upgrading your current rifle or building a custom AR from the ground up, we stock high-quality components from top manufacturers like Aero Precision, Magpul, Radian Weapons, BCM, Geissele, and more. Shop complete uppers, stripped lowers, triggers, handguards, buffer kits, barrels, and everything you need for your next AR build. Our expert staff is here to help you build it right the first time.
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RADIAN A-DAC 15 LOWER RECEIVER FDE
Radian Weapons
MSRP: $592.19$515.00Machined from billet 7075-T6 aluminum, the A-DAC 15 is a fully ambidextrous lower receiver for AR15-style firearms. In addition to the Talon Ambidextrous Safety Selector, left-side magazine release, and right-side bolt release, the A-DAC 15 features the...MSRP: $592.19$515.00 -
RADIAN A-DAC 15 LOWER RECEIVER BLACK
Radian Weapons
MSRP: $592.19$515.00Machined from billet 7075-T6 aluminum, the A-DAC 15 is a fully ambidextrous lower receiver for AR15-style firearms. In addition to the Talon Ambidextrous Safety Selector, left-side magazine release, and right-side bolt release, the A-DAC 15 features the...MSRP: $592.19$515.00 -
PWS MK1 MOD 2-M COMP RIFLE LOWER
Primary Weapons Systems
MSRP: $689.94$630.00Primary 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$630.00 -
LANTAC SF FRGD BUILDER SET 12.5 RL
LanTac USA LLC
MSRP: $587.06$511.00Lantac 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: $587.06$511.00 -
LBE READY BUILD KIT 14.5 CHF BBL
LBE Unlimited
MSRP: $596.47$514.00High quality components and precise manufacturing make LBE parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on. The LBE Ready Build Kit...MSRP: $596.47$514.00 -
LBE READY BUILD KIT 13.7 CHF BBL
LBE Unlimited
MSRP: $596.47$514.00High quality components and precise manufacturing make LBE parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on. The LBE Ready Build Kit...MSRP: $596.47$514.00 -
LBE READY BUILD KIT 12.5 CHF BBL
LBE Unlimited
MSRP: $596.47$514.00High quality components and precise manufacturing make LBE parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on. The LBE Ready Build Kit...MSRP: $596.47$514.00 -
BAD WORKHRSE 556 UPPR 10.5 BLK N/BCG
Battle Arms Development
MSRP: $624.99$525.00Established in 2009, Battle Arms Development, Inc. (B.A.D. Inc.) stands as a distinguished force in the realm of small arms innovation. Nestled in the heart of Henderson, Nevada, their company is driven by a relentless commitment to pushing the...MSRP: $624.99$525.00 -
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 -
MAXIM SCW STOCK GEN7 STD BLK
Maxim Defense Industries
MSRP: $590.57$522.00The Maxim Defense SCW Stock is built for comfort and durability for real-world use. No buttons to push, just pull the stock to deploy. At its most collapsed position, this SCW stock only adds 4.0" to your AR-15. At full extension, the Maxim SCW stock...MSRP: $590.57$522.00 -
DD RIS III RAIL ASSEMBLIES 13 BLK
Daniel Defense
MSRP: $576.15$516.00The Daniel Defense RIS III Rail Interface System takes the proven design of Daniel Defense's two-piece RIS II rails-used by U.S. Special Operations Command (SOCOM) since 2006-and reduces weight while adding versatility by utilizing M-LOK attachment. You...MSRP: $576.15$516.00 -
DD RIS III RAIL ASSEMBLIES 13 FDE
Daniel Defense
MSRP: $576.15$516.00The Daniel Defense RIS III Rail Interface System takes the proven design of Daniel Defense's two-piece RIS II rails-used by U.S. Special Operations Command (SOCOM) since 2006-and reduces weight while adding versatility by utilizing M-LOK attachment. You...MSRP: $576.15$516.00