BCM MK2 Recoil Mitigation System Mod 1 - 8-Position Receiver Extension - Multiple Buffer Weights
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BCM MK2 Recoil Mitigation System Mod 1 – T0, T1 & T2 Buffer Options
Features
- Complete BCM MK2 recoil system for compatible AR-15 lower receivers and mil-spec-diameter stocks
- Available with T0, T1, or T2 buffers for different buffer-weight requirements
- Extended MK2 buffer design provides increased internal counterweight travel to help reduce bolt bounce
- Internal buffer spring reduces counterweight movement noise and helps maintain more consistent weight positioning
- Uses a mil-spec M16A4 rifle action spring with more coils than a conventional M4 carbine spring
- Designed to provide more consistent carrier velocity and a wider operating envelope than a conventional carbine buffer system
- 8-position MK2 receiver extension provides additional stock-position adjustment
- MK2 receiver extension is approximately 3/4″ longer than a standard carbine receiver extension
- Includes receiver end plate with integrated QD sling swivel socket
- 7075-T6 aluminum buffer with hardcoat-anodized finish
The BCM MK2 Recoil Mitigation System replaces a conventional AR-15 carbine buffer setup with an extended receiver extension, M16A4 rifle action spring, and longer MK2 buffer engineered for more consistent carrier movement and reduced bolt bounce. The Mod 1 system is available with T0, T1, and T2 buffers ranging from 3.8 to 5.6 oz, allowing the same core MK2 system to be selected with different reciprocating weights. Each kit includes the receiver extension, spring, QD end plate, and castle nut needed to install the system on a compatible lower receiver.

Note: The MK2 receiver extension is approximately 3/4″ longer than a standard carbine extension. BCM notes that because of the additional length, some mil-spec stocks may not collapse completely forward against the castle nut. This system requires the included MK2-length buffer and rifle action spring; it should not be treated as a standard carbine buffer system.
Specifications
- Brand: BCM / Bravo Company
- Model: MK2 Recoil Mitigation System Mod 1
- Compatibility: Compatible AR-15 lower receivers using mil-spec-diameter adjustable stocks
- Receiver Extension: BCM MK2, approximately 3/4″ longer than carbine length
- Receiver Extension Positions: 8
- Receiver Extension Diameter: Mil-spec
- Action Spring: Mil-spec M16A4 rifle action spring
- Buffer Material: 7075-T6 aluminum
- Buffer Finish: Hardcoat anodized
- End Plate: QD receiver end plate
- Color: Black
- Buffer Options:
- T0 – MPN: BCM-MK2RMS-M1T0 – Buffer Weight: Approximately 3.8 oz
- T1 – MPN: BCM-MK2RMS-M1T1 – Buffer Weight: Approximately 4.7 oz
- T2 – MPN: BCM-MK2RMS-M1T2 – Buffer Weight: Approximately 5.6 oz
What’s Included
- 1x BCM MK2 Mod 1 buffer – T0, T1, or T2 depending on selection
- 1x Mil-spec M16A4 rifle action spring
- 1x BCM MK2 8-position receiver extension
- 1x M4 castle nut
- 1x Receiver QD end plate
All 3 options on this page
- BCM MK2 Recoil Mitigation System Mod 1 - 8-Position Receiver Extension - Multiple Buffer Weights - Buffer Weight: T1 | SKU: BCM-MK2RMS-M1T1
- BCM MK2 Recoil Mitigation System Mod 1 - 8-Position Receiver Extension - Multiple Buffer Weights - Buffer Weight: T2 | SKU: BCM-MK2RMS-M1T2
- BCM MK2 Recoil Mitigation System Mod 1 - 8-Position Receiver Extension - Multiple Buffer Weights - Buffer Weight: T0 | SKU: BCM-MK2RMS-M1T0
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Warranty & returns
Backed by Bravo Company Lifetime Workmanship Warranty!
Bravo Company Lifetime Workmanship Warranty
Bravo Company USA, Inc. offers a 30-day return of products for either an In-Store Credit to your customer account or credit card refund policy. You must contact Bravo Company USA, Inc. via email prior to sending your product back for return or refund to receive an RMA number. All returns must include the original receipt and invoice, along with the billing address, shipping address, contact phone numbers, contact emails, and RMA number. Returns and refunds may take up to two weeks, not including transit times.
In-Store Credits are not assessed a restocking fee. Items that are unused and in the original sealed packaging can be returned for a credit card refund subject to a 15% restocking fee. If the product and packaging have been opened, damaged, or used, the return is subject to a 25% restocking fee or may be rejected. The return must include accessories, manuals, documentation, and registration that were shipped with the product. Shipping charges and/or shipping costs are not subject to refunds. Products that are not eligible for returns are custom configured products, used products, all clothing items, special orders, and items sold “as is” or “used”.
If you wish to exchange the unused, uninstalled, and unopened items, you will receive an in-store credit for the returned products. The in-store credit will be issued via email and can be applied toward future purchases. It is recommended that you return merchandise with a carrier that offers tracking numbers and full value insurance on the parcels. Bravo Company USA, Inc. cannot be responsible for any packages that are lost while being shipped to us. Please note that the USPS Priority Mail will only initiate a trace on packages after a 30 day waiting period.
FOR WARRANTY CLAIMS: Please contact us via email so we can assist you and issue an RMA if necessary. All BCM products carry a lifetime workmanship warranty to the purchaser.
Email: info@bravocompanyusa.com
Disclaimer: Manufacturer’s warranty is subject to change without prior notice.
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