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BCM MK2 Standard 16" 300 BLACKOUT Upper Receiver Group w/ MCMR-15 Handguard

ID: 22623 (Upper-BCM-MK2-URG-300BLK-16-MCMR15)
BCM-MK2-URG-300BLK-16-MCMR15
BCM859188226234BCM-MK2-URG-300BLK-16-MCMR1522623
BCM MK2 Standard 16 300 BLACKOUT Upper Receiver Group w/ MCMR-15 Handguard
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Complete lower receiver assembly, charging handle, bolt carrier group not included
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BCM

$725.90

This item is currently Sold Out

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This is an export-restricted item and can only be shipped within the United States. No international delivery for these items.
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Features

  • Continuous taper barrel profile designed for optimal weight, balance, and performance
  • Barrel profile fluted toward the rear near chamber area - Increases strength and heat dissipation
  • Tapered barrel profile out front, for easier maneuverability
  • No sharp handguard cap shoulder for improved barrel harmonics and improved accuracy
Featuring BCMs Patent Pending MK2 Upper Receiver
This proprietary design offers enhanced rigidity over the USGI product. The increased rigidity limits barrel deflection which aids in consistency/accuracy. Less flex also reduces premature damage, wear, and failure of bolt lugs from misalignment. A gas expansion chamber is machined above the charging handle track, combined with dual vents machined at the rear (each side, above charging handle latch) help to redirect and vent gas away the shooters face.

BCM has taken great care to ensure the best possible performance and interchangeability. However, due to the large operational range of 300 Blackout ammunition in the market place, BCM cannot guarantee function will all ammunition types in all conditions. These barrels were designed to run with a carbine buffer with subsonic ammo and a H3 buffer with high velocity ammo. Fine tuning may be required in limited instances based on ammo and buffer choices that work best for the desired application. BCM also recommends running the Crane O-ring (provided with all BCM Bolt Carrier Groups) over the extractor with 300 Blackout.

Manufacturer: BCM

Specifications:

Caliber: 300 Blackout
Barrel Length: 16.1+"
Barrel Material: 11595E Spec Steel
Barrel Finish: Manganese Phosphate (Mil-Spec A-A-59267)
Bore & Chamber: Chrome Lined
Weight: 3 lbs
Twist Rate: 1:7
Gas System: Carbine
Muzzle Device: BCM Comp Mod 1 (762/300BLK)
Muzzle Threads: 5/8x24
Handguard: MCMR-15
Compatibility: Most compatible AR15 style lower receivers
Package Includes: Upper receiver group without bcg and charging handle, BCM MCMR-SM, and one 3" picatinny rail section


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