LMT MWS/SR-25 Carbine Receiver Extension (Buffer Tube)


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LMT MWS/SR-25 Carbine Receiver Extension (Buffer Tube)

The Lewis Machine and Tool MWS/SR-25 buffer tube is a great choice for your next build. It is made out of lightweight and durable aluminum and is designed specifically for .308 and 6.5 caliber rifles.

This carbine length buffer tube is built to Mil-Spec dimensions for use with all your favorite adjustable carbine stocks. However, it is slightly longer to accommodate standard carbine buffer weights and springs. This length allows for an additional adjustment hole for a total of 7 adjustment positions for even more length of pull options. With extremely precise and durable threads, this .308 buffer tube will lock tightly into any AR-10 lower. It also features an extended lip that sits against the buffer retaining pin for additional strength and helps to prevent carrier tilt. If you are building a new AR-10, check out the Lewis Machine and Tool 308 carbine buffer tube.


  • Machined from aluminum
  • Mil-Spec dimensions for compatibility with your favorite carbine stock
  • 6 adjustment positions
  • Durable rolled threads
  • Extended lip for added strength
  • Compatible with standard carbine buffer and spring

Lewis Machine and Tool is dedicated to providing customers with high quality products that have been serving law enforcement and military for years. This receiver extension is used on LMT .308 rifles and now you can use it to build your own.


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