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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DBST FIELD REPAIR KIT
Doublestar Corp.
MSRP: $64.39$45.99The field repair kit was designed to provide the most commonly worn or broken parts in your semi auto AR15. It's a great addition to your range bag! All parts are high quality.MANUFACTURER: Doublestar Corp.MPN: AR785MODEL: 0Description: Repair Kit...MSRP: $64.39$45.99 -
DBST LPK 556 BLK
Doublestar Corp.
MSRP: $100.79$71.99Double Star uses only the best parts to make their lower parts kits. The fire control group is made from mil spec heat treated 8620 steel and finished on all touch points for a smooth, crisp trigger pull with minimal creep or drag. This AR15 lower parts...MSRP: $100.79$71.99 -
DBST OOPS! REPLACEMENT KIT
Doublestar Corp.
MSRP: $24.73$14.99Sometimes parts go missing or need replacement. Don't be caught unprepared with a useless rifle and stand ready with the Double Star Oops! Kit. The kit fits easily in your range bag, backpack, and even in your pocket. Never say Oops! with the Double Star...MSRP: $24.73$14.99 -
DD GRIP-N-RIP CHRGNG HNDL AMBI 556
Daniel Defense
MSRP: $151.20$108.00High quality components and precise manufacturing make Daniel Defense 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.MANUFACTURER:...MSRP: $151.20$108.00 -
DD LPK 556 BLK
Daniel Defense
MSRP: $165.20$118.00Lower receiver parts kit for the AR-15.MANUFACTURER: Daniel DefenseMPN: 05-013-21007MODEL: 0Description: Lower Receiver Parts KitFit: AR-15Caliber: 556NATOType: Lower Parts KitColor: BlackMSRP: $165.20$118.00 -
COLT LOWER RECEIVER PARTS KIT AR15
Colt's Manufacturing
MSRP: $152.95$109.25Convenient kit of genuine Colt factory parts includes all the small parts needed to finish a small-pin AR-15 lower receiver, and install the trigger group and pistol grip of your choice. Or, use the kit to rebuild the worn internals of an old rifle and...MSRP: $152.95$109.25 -
CMMG AMBI SAFETY SELECTOR AR15
CMMG
MSRP: $34.02$27.58Replaces your standard safety selector to accommodate left and right handed shooters. All parts meet or exceed mil-spec.MANUFACTURER: CMMGMPN: 55CA6D9MODEL: 0Description: Ambidextrous Safety Selector KitType: Safety SelectorMSRP: $34.02$27.58 -
CMMG LOW PRO GAS BLOCK .750 ID
CMMG
MSRP: $43.43$31.02.750" Low profile gas block. Includes installation screws.MANUFACTURER: CMMGMPN: 55DA38DMODEL: ARDescription: .750"Type: Gas BlockColor: BlackMSRP: $43.43$31.02 -
CMMG LPK 308 BLK
CMMG
MSRP: $95.41$68.84All the parts you need to get started on your next Mk3 build. Combine this kit with a buttstock kit to complete your lower group. Compatible with CMMG Mk3 Lowers and most LR308 type lowers.MANUFACTURER: CMMGMPN: 38CA6DCMODEL: 308Description: Lower...MSRP: $95.41$68.84 -
CMMG LPK 556 BLK
CMMG
MSRP: $81.07$57.91All the parts you need to get started on your next AR15 build. Combine this kit with a buttstock kit to complete your lower group.MANUFACTURER: CMMGMPN: 55CA6C5MODEL: 556Description: Lower Receiver Parts KitType: Lower Parts KitColor: BlackMSRP: $81.07$57.91 -
CMMG PARTS KIT AR15 MAGAZINE CATCH
CMMG
MSRP: $18.78$11.38High quality components and precise manufacturing make CMMG 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.MANUFACTURER: CMMGMPN:...MSRP: $18.78$11.38 -
CMMG PARTS KIT AR15 BOLT CATCH
CMMG
MSRP: $17.33$10.50High quality components and precise manufacturing make CMMG 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.MANUFACTURER: CMMGMPN:...MSRP: $17.33$10.50