BCA AR-15 Half Upper Assembly 16" 4150 Parkerized Heavy Barrel, 7.62 x39, Carbine Length Gas System, 1:10 Twist w/ 15" MLOK Rail

Special Price $159.99 was $269.99
Out of stock


  • 16” Heavy Barrel Barrel
  • 4150 Chrome Moly Vanadium 
  • Parkerized Finish
  • 1:10 Twist
  • 15” MLOK Rail 
  • 7.62x39 Caliber
  • Carbine Length Gas System
  • M4 Flat-Top Forged Stripped Upper Receiver   
  • NO BCG

This BCA AR-15 Upper has a 16” barrel with a Heavy barrel profile, made of 4150 steel with a Parkerized finish, and features a 1:10 Twist Rate, a Carbine length gas system and .750 Gas Block.
The Upper includes a 15” MLOK Rail, and a M4 flat-top forged stripped upper receiver. It is chambered in 7.62x39 and machined with 300 Blackout feed ramps in the barrel extension.

This BCA AR-15  Upper, 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 Rifle is also backed by our Bear Den Guarantee.

Choose an upper designed by a US company and made in the USA. Choose Bear Creek Arsenal.

More Information
Color Black/ Charcoal Grey
SKU 688-UHA762CHB16110P-15MLOK3
Length 16
Profile Heavy Barrel
Twist 1:10
Finish Parkerized
Material 4150 Chrome Moly Vanadium
Thread Pitch 5/8 x 24
Caliber 7.62x39
Feed Ramp .300 Blackout
Gas System Carbine
Gas Block System 0.750
Gas Hole Diameter 0.093
Dimpled Yes
Platform AR-15