BCA AR-15 Complete Upper Assembly, 10.5” 4150 Parkerized Heavy Barrel, .450 Bushmaster, Carbine Length Gas System, 1:24 Twist w/ 10” MLOK Rail

$269.90
In stock
SKU
657-UA450CHB10.5124P-10MLOK
  • 10.5” Heavy Barrel.
  • 4150 Chrome Moly Vanadium
  • Parkerized finish
  • 1:24 Twist
  • 10” BLANK Rail
  • .450 Bushmaser Caliber
  • Carbine Length Gas System
  • M4 Flat-Top Forged Upper Receiver
  • Standard Bear Creek Arsenal Bolt Carrier Group
  • Charging Handle
  • LS2 Flash Hider

This BCA AR-15 Complete Upper has a 10.5” barrel with a Heavy profile, made of 4150 steel with a Parkerized finish, and features a 1:24 Twist Rate, a Carbine length gas system and .750 Gas Block.
The Upper Assembly includes a 10” MLOK Rail, an M4 flat-top forged upper receiver with forward assist, a BCA Bolt Carrier Group, an LS2 Flash Hider, and a Charging Handle,  It is chambered in .450 Bushmaster and machined with a single feed ramp in the barrel extension.

This BCA AR-15 Complete Upper Assembly, like all BCA products, is subjected to numerous QA/QC checks which for our firearms and complete upper receiver assemblies includes test firing prior to approval and shipment. This upper is also backed by our Bear Den Guarantee.

More Information
SKU 657-UA450CHB10.5124P-10MLOK
Weight 3.7900
Length 10.5
Profile Heavy Barrel
Twist 1:24
Finish Parkerized
Material 4150 Chrome Moly Vanadium
Thread Pitch 5/8 x 32
Caliber .450 Bushmaster
Feed Ramp Single
Flutes N/A
Gas Block System 0.750
Gas Hole Diameter 0.093
Charging Style Rear Charging
Color Black
Dimpled Yes
Product Type Complete Upper Assembly
Platform AR-15