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 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 BL BBL 10.5 300BLK HB 1/7
Rosco Manufacturing
MSRP: $220.50$158.00This Rosco 10.5" 300 Blackout barrel was designed for SBR and Pistol use in conjunction with suppressors. The 10.5" 300 Blackout Rosco barrel was made to be a direct replacement for any MK 18 platforms that are currently in 5.56 NATO. The 10.5" barrel is...MSRP: $220.50$158.00 -
ROSCO BL BBL 8.2 300BLK HB 1/7
Rosco Manufacturing
MSRP: $205.38$147.00This Rosco 8.2" 300 Blackout Bloodline Barrel was designed for SBR and Pistol use in conjunction with suppressors. This is the shortest that Rosco will go to allow you the flexibility of a shorter Personal Defense Weapon (PDW) without sacrificing...MSRP: $205.38$147.00 -
ROSCO 14.5 GVT 5.56 NATO
Rosco Manufacturing
MSRP: $187.71$156.00The 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$156.00 -
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 -
RADIAN UPPER 10.5 223 WYLDE ODG
Radian Weapons
MSRP: $2,152.59$1,905.00The design philosophy behind the Radian Model 1 is simple: use the highest quality raw materials, most precise CNC machining equipment, and best components available to create a weapon that seamlessly blends form and function. Beyond quality and...MSRP: $2,152.59$1,905.00 -
RADIAN UPPER 10.5 223 WYLDE FDE
Radian Weapons
MSRP: $2,152.59$1,905.00The design philosophy behind the Radian Model 1 is simple: use the highest quality raw materials, most precise CNC machining equipment, and best components available to create a weapon that seamlessly blends form and function. Beyond quality and...MSRP: $2,152.59$1,905.00 -
RADIAN UPPER 10.5 223 WYLDE BROWN
Radian Weapons
MSRP: $2,152.59$1,905.00The design philosophy behind the Radian Model 1 is simple: use the highest quality raw materials, most precise CNC machining equipment, and best components available to create a weapon that seamlessly blends form and function. Beyond quality and...MSRP: $2,152.59$1,905.00 -
RADIAN UPPER 10.5 223 WYLDE BLACK
Radian Weapons
MSRP: $2,152.59$1,905.00The design philosophy behind the Radian Model 1 is simple: use the highest quality raw materials, most precise CNC machining equipment, and best components available to create a weapon that seamlessly blends form and function. Beyond quality and...MSRP: $2,152.59$1,905.00 -
PWS MK109 MOD 1-M UPPER 300BLK 9.75
Primary Weapons Systems
MSRP: $1,186.44$1,130.00The MK1 MOD 1-M line features the PWS long stroke piston system. Internally, this line offers the tried and true system that PWS owners have grown to know and love. Featuring a free-float MLOK handguard, forward assist controls, and a more true to...MSRP: $1,186.44$1,130.00 -
PWS MK109 MOD 2-M UPPER 300BLK 9.75
Primary Weapons Systems
MSRP: $1,468.94$1,400.00The 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$1,400.00