Here’s a Bravo Company Manufacturing (BCM) AR upper receiver featuring the MCMR-13 MLOK handguard, chambered in 5.56. This upper is in excellent condition, showing very little use and retaining its factory appearance. BCM is well-known for precision and reliability—making this upper an outstanding choice for your next build or upgrade. You’re looking at the exact item pictured.
Please contact us with any questions about this BCM MCMR-13 upper receiver!
Do you own this item, and are looking to get cash for it?
How to Purchase a Gun Online with Bay State Surplus
Easy & Convenient.
When buying a firearm from Bay State Surplus, you can pay for shipping or select 'store pickup' at checkout to skip the fee. Shipped firearms must go to a licensed FFL dealer with their consent and license copy. We offer Priority or Ground shipping. IT IS THE BUYERS RESPONSIBILITY TO CONFIRM THE FIREARM/ MAGAZINE IS IN STOCK & COMPLIANT IN THEIR STATE. Feel free to ask us any questions at baystatesurplus@gmail.com. Thank you for choosing Bay State Surplus!
Download the approved handgun roster to view which handguns are transferable in Massachusetts
The enforcement of the Long Gun Roster has been postponed until the roster is officially released, and the release date remains uncertain. As of writing this (11/7/2026), all long guns are still transferable in Massachusetts for now, provided they do not meet the NEW definition of an "Assault Style Firearm."

































