BCM MK2 Buffer Weight for MK2 AR-15 Receiver Extensions

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BCM MK2 Receiver Extension for AR-15 - AT3 Tactical

BCM MK2 Receiver Extension for AR-15


BCM MK2 Receiver Extension for AR-15 - AT3 Tactical

BCM MK2 Receiver Extension for AR-15

Buffer Spring for Fixed Stock AR-15

Luth-AR Rifle Buffer Spring A1/A2 AR-15 Receiver Extensions


Buffer Spring for Fixed Stock AR-15

Luth-AR Rifle Buffer Spring for A1/A2 AR-15 Receiver Extensions

Bravo Company MK2 Buffer with 4 Sliding Weights

The Bravo Company MK2 Buffer weight for their specialized MK2 Receiver Extension is an upgrade over standard AR-15 buffers. Each buffer contains four sliding weights, along with an internal flat wire spring to ensure even reciprocation of mass. When combined with the MK2 Receiver Extension and an AR-15 Rifle length recoil spring, this buffer effectively reduces recoil.

You can also find MK2 Buffer kits here, with options for T0, T1, and T2 buffers included.

Note: MK2 Buffers are proprietary to MK2 Receiver extensions. Do NOT use MK2 Buffers in standard carbine buffer tubes!

What Do These Weights Mean?

Each choice of buffer weight corresponds to how many of the internal weights are steel or tungsten. T0 means that there are no tungsten weights inside the buffer; it’s all steel. T2 means that there are 2 tungsten weights, and 2 steel weights. This range allows you to fine-tune your rifle to effectively tame recoil from almost any amount of over-gassing.


  • Weight
    • T0: 3.8 oz (4 Steel Weights)
    • T1: 4.7 oz (1 Tungsten Weight, 3 Steel Weights)
    • T2: 5.6 oz (2 Tungsten Weights, 2 Steel Weights)
    • T3: 6.5 oz (3 Tungsten Weights, 1 Steel Weight)
    • T4: 7.4 oz (4 Tungsten Weights)
  • Buffer Body Material: 7075 T-6 Aluminum
  • Buffer Body Finish: Hard Coat Anodized
  • Internal Flatwire Spring: Chrome Silicone
  • Bumper: Polyether Urethane

Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

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.