Standard USGI Mil Spec sized Buffer Tubes (Receiver Extension).
Available choices:
- 2 position 1964 - 1988
- 4 position 1988 - 2000
- 5 position
- 6 position
Note: Milspec and Commercial Sizes are not compatible with each other - they are different sizes. Commercial size should only be chosen if you know for sure you have an old Commercial sized Stock or replacing the same. Everyone else should choose Milspec since that is the long establish Standard by now and is the only size the US Military has ever used.
Aluminum, 7075
Made in the USA
Lifetime Guarantee
