BCM® MK2 Standard 9″ 300 BLACKOUT Complete Upper Receiver

Name: BCM® MK2 Standard 9" 300 BLACKOUT Complete Upper Receiver - RELOADING GEAR STORE
Price: 895.00 USD
Availability: InStock

$895.00

BCM® Bolt Carrier Group:NoneBCM® Bolt Carrier Group (MPI) (Auto) (included FREE w/ Upper Receiver Group, Special Limited Time Offer)

BCM® Charging Handle:NoneAmbi MK2 Handle (LARGE) +$89.95Ambi MK2 Handle (MEDIUM) +$89.95Asym MK2 Handle (LARGE) +$74.95Asym MK2 Handle (MEDIUM) +$74.95

Muzzle Device: RequiredBCM Comp Mod 1 – 7.62 / 300 Blackout

Category: AR-15 Upper Parts

Description
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About the BCM® MK2 Standard 9″ 300 BLACKOUT Complete Upper Receiver w/ MCMR-8 Handguard

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.
Muzzle threaded in standard 30 cal (5/8×24)

Includes:

MCMR-8 Handguard
MCMR-SM (MCMR Sling Mount)
One 3″ Picatinny Rail SectionIncludes
BCM® Comp Mod 1 – 762/300 BLK

Featuring BCM’s Patented 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. U.S. Patent Numbers: 10670355, 10677549, D888182

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 H3 buffer with high velocity ammo. If running subsonic ammunition, it is recommended to run your suppressor and a carbine buffer.

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.

Product details:

Caliber: 300 Blackout
Barrel Length: 9″
Barrel Material: 11595E Spec Steel
Barrel Finish: Manganese Phosphate (Mil-Spec A-A-59267)
Bore & Chamber: Chrome Lined
Weight: 2.2 lbs
Twist Rate: 1:7
Gas System: Pistol
Muzzle Device: BCM® Comp Mod 1 (762/300BLK)
Muzzle Threads: 5/8×24
Handguard: MCMR-8
this Pricing includes its furniture set

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BCM® MK2 Standard 9″ 300 BLACKOUT Complete Upper Receiver

About the BCM® MK2 Standard 9″ 300 BLACKOUT Complete Upper Receiver w/ MCMR-8 Handguard

Features:

Includes:

Featuring BCM’s Patented MK2 Upper Receiver

Product details:

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