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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ROSCO BL 8.2 300BLK SAUCE PACK
Rosco Manufacturing
MSRP: $390.28$313.00The Rosco Sauce Pack bundles were created after direct requests from Rosco's customers to provide them with the key components needed for their carbine/pistol builds at a great combined price. The result is a hand-picked list of parts that will produce...MSRP: $390.28$313.00 -
ROSCO BL 14.5 556NATO SAUCE PACK
Rosco Manufacturing
MSRP: $391.45$314.00The Rosco Sauce Pack bundles were created after direct requests from Rosco's customers to provide them with the key components needed for their carbine/pistol builds at a great combined price. The result is a hand-picked list of parts that will produce...MSRP: $391.45$314.00 -
ROSCO BL BBL SAUCE PACK 10.5 5.56
Rosco Manufacturing
MSRP: $332.95$292.00High quality components and precise manufacturing makes Rosco Products ideal for both new shooters and experienced gun owners. The durability, reliability and excellent build quality will provide years of service you can count on.MANUFACTURER: Rosco...MSRP: $332.95$292.00 -
ROSCO PB BBL 8.2 300BLK
Rosco Manufacturing
MSRP: $213.01$157.00This Rosco Purebred 8.2" 300 Blackout Barrel was designed for SBR/ Pistol use in conjunction with suppressors. This is the shortest that they will go to allow you the flexibility of a shorter Personal Defense Weapon (PDW) without sacrificing performance...MSRP: $213.01$157.00 -
ROSCO PB BBL 14.5 223WYLDE
Rosco Manufacturing
MSRP: $222.78$165.00This 14.5" Rosco barrel is the perfect option for an evenly capable SBR/ RECCE build. It is designed to give the shooter maneuverability at close quarters yet allow them to get first round impact hits as far as 300 yards. The gas system has been designed...MSRP: $222.78$165.00 -
ROSCO 14.5 GVT 5.56 NATO
Rosco Manufacturing
MSRP: $187.71$133.00The 14.5" M4 5.56 NATO Bloodline Barrel (Mid-Length). This 14.5" M4 5.56 NATO Mid-Length barrel was designed around the USASOC specs for an Improved Upper Receiver Group with a little bit of the Rosco touch as well. The longer gas system allows for a...MSRP: $187.71$133.00 -
ROSCO BL BBL 14.5 5.56 1/7
Rosco Manufacturing
MSRP: $206.64$148.0014.5" M4 5.56 NATO Bloodline Barrel: This Rosco 14.5" M4 5.56 NATO Bloodline Barrel was built around the M4 platform and is designed to be the next evolutionary step in the series. This barrel is perfectly suited for your next patrol or duty carbine...MSRP: $206.64$148.00 -
ROSCO 12.5 M4 5.56 NATO
Rosco Manufacturing
MSRP: $184.28$128.00This Rosco 12.5" M4 5.56 NATO Bloodline Barrel is designed to be the perfect addition to any SBR or Pistol build. The Rosco 5.56 (NATO) barrels are designed to meet the modern day carbine shooters requirements. They are a long way from their daddy's...MSRP: $184.28$128.00 -
ROSCO BL BBL 11.5 5.56 1/7
Rosco Manufacturing
MSRP: $192.78$138.00Bloodline 11.5" M4 5.56 NATO: This Rosco 11.5" M4 5.56 NATO Bloodline Barrel is designed to be the perfect addition to any SBR or Pistol build. ALL NFA RULES APPLY! Rosco 5.56 (NATO) barrels are designed to meet the modern day carbine shooters...MSRP: $192.78$138.00 -
ROSCO BL BBL 10.5 5.56 1/7
Rosco Manufacturing
MSRP: $185.22$133.00Bloodline 10.5" M4 5.56 NATO: This Rosco 10.5" M4 5.56 NATO Bloodline Barrel is designed to be the perfect addition to any SBR or Pistol build. ALL NFA RULES APPLY! Rosco 5.56 (NATO) barrels are designed to meet the modern day carbine shooters...MSRP: $185.22$133.00 -
RADICAL UPPR 300BLK 10.5 MLOK BLK
Radical Firearms
MSRP: $542.46$296.00The Radical Firearms 10.5" HBAR profile 300BLK is a complete MIL-STD upper ready to drop on any MIL-STD lower Receiver. Perfect for the novice or advanced shooter wanting to finish out that build and hit the range. Built with the 10" RPR free float rail...MSRP: $542.46$296.00 -
PWS MK109 MOD 2-M UPPER 300BLK 9.75
Primary Weapons Systems
MSRP: $1,468.94$1,300.00The PWS MK1 MOD 2-M line features the PWS long stroke piston system. While the internals remain the same as other PWS lines, the MK1 MOD 2-M offers a variety of features exclusive to this line. Starting with patent pending PicLok technology on the free...MSRP: $1,468.94$1,300.00