BCM Standard 300 BLK Upper Receiver Group – MCMR-13 Handguard – 16″


  • 300 Blackout
  • 11595E Spec Steel Barrell
  • Manganese phosphate barrel finish
  • Chrome lined bore and chamber
  • 3 lbs
  • 1:7 Twist Rate


Out of stock

Want to be notified when this product is back in stock?

SKUBCM-URG-300BLK-16-MCMR-13 Category

The BCM Standard 300 BLK Upper Receiver Group with MCMR-13 handguard is built around a 11595E Mil Spec steel barrel, meaning you can expect nothing but the best in terms of durability and performance. The barrel profile is tapered for optimal weight and balance, and it comes with one 3″ picatinny rail section. So if you’re in the market for a top-of-the-line upper receiver group, don’t hesitate to give BCM a try!

Notice from the manufacturer:

“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.”


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.