BCA AR-15 Complete Pistol Upper Assembly: 7.5" 4150 Parkerized M4 Contour Barrel, 5.56 NATO, Pistol Length Gas System, 1:7 Twist w/ 7" MLOK

Special Price $179.99 was $246.87
In stock

SKU: UA556PM47.517(P)-(7)MLOK

  • 7.5" Parkerized 4150 Chrome Moly Vanadium Barrel w/ 1:7 Twist
  • M4 Contour Barrel Profile
  • 7" Mlok Rail
  • 5.56 NATO Caliber
  • Forged Upper Receiver
  • Rear Charging
  • Pistol Length Gas System, .750 Diameter Gas Block
  • BCA Standard BCG
  • Charging Handle
  • Bird Cage Flash Hider

The BCA AR-15 Complete Upper Assembly has a 7.5" M4 contour barrel made of 4150 steel with a parkerized finish in a 1:7 twist rate. The build includes a 7" MLOK Rail, a rear charging forged upper receiver, a bolt carrier group, a bird cage flash hider and a charging handle. It chambered in 5.56 NATO and machined with M4 feed ramps in the barrel extension.

The BCA Complete Upper, like all BCA products, is subjected to numerous QA/QC checks which for our firearms and upper receiver assemblies includes test firing prior to approval and shipment. This upper assembly is also backed by our BCA limited lifetime warranty. Choose an upper assembly designed by a U.S. company and made in the U.S.A. Choose BCA.


*Note – We strive to provide the most accurate photographs of our product. Variations may occur in the skeletonized section of the handguard you receive.

More Information
SKU 621-UA556PM47.517P-7MLOK3
Weight 4.0000
Length 7.5
Profile M4 Contour
Twist 1:7
Finish Parkerized
Material 4150 Chrome Moly Vanadium
Caliber 5.56 NATO
Gas System Pistol
Gas Block System 0.750
Gas Hole Diameter 0.076
Charging Style Rear Charging
Magazine Capacity N/A
Platform AR-15