BCA AR-15 Complete Upper, 16” 4150 Parkerized Heavy Barrel, 12.7 x 42 Caliber (.50 Cal), Carbine Length Gas System, 1:20 Twist w/ 15” MLOK Rail

Special Price $349.99 was $399.99
In stock
SKU
645-UA12.7X42CHB16120P.936-15MLOK2
  • 16” Heavy Barrel
  • 4150 Chrome Moly Vanadium
  • Parkerized Finish
  • 1:20 Twist
  • 15” MLOK Rail
  • 12.7 x 42 Caliber (.50 Cal)
  • Carbine Length Gas System
  • M4 Flat-Top Forged Upper Receiver
  • Standard Bear Creek Arsenal Bolt Carrier Group
  • Charging Handle
  • Spiral LS2 Flash Hider

THE LARGEST CALIBER AVAILABLE ON THE AR-15 PLATFORM!

This BCA AR-15 Complete Upper has a 16” barrel with a Heavy profile, made of 4150 Chromemoly Vanadium steel with a Parkerized finish, and features a 1:20 Twist Rate, a Carbine length gas system and .936 Gas Block. 

The Upper includes a 15” 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 12.7 x 42 (.50 Cal) and machined with a single feed ramp in the barrel extension. 

This BCA AR-15 Complete 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 Upper 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
SKU 645-UA12.7X42CHB16120P.936-15MLOK2
Weight 4.8000
Length 16
Profile Heavy Barrel
Twist 1:20
Finish Parkerized
Material 4150 Chrome Moly Vanadium
Thread Pitch 49/64 x 20
Caliber 12.7 x 42
Feed Ramp Single
Flutes N/A
Gas System Carbine
Gas Block System 0.936
Gas Hole Diameter 0.076
Charging Style Rear Charging
Color Black
Dimpled Yes
Product Type Complete Upper Assembly
Platform AR-15