- 4 position Commercial Size (Made in USA, 7075)
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 except where noted
Made in the USA, except where noted
Great quality--it made my build.
My Frankford Arsenal machinegun had a commercial diameter buffer tube that was too long (allowed BCG gas key to strike lower receiver under recoil) and the stock adjustment holes were worn out. I ordered the 4 position commercial tube from RetroRifles. It fit perfectly inside the fiberlite stock and threaded easily into the receiver. The length is correct so the gas key cannot strike the receiver. Best part, the back end is straight up and down, not canted like other commercial diameter buffer tubes. Thanks RetroRifles.