May 6, 201412 yr Does anyone foresee any issues with cycling etc if I use a standard milspec 6 position receiver extension on a SPR build with an 18" barrel and rifle length gas system...I'm either going with a standard A1 stock on A2 extension or a Bravo SOPMOD on the 6 position tube...my only worry with the SOPMOD would be cycling with the different buffer tube...would the 6 pos tube need different springs and buffer..thanks all!
May 6, 201412 yr If you use a carbine type buffer and action spring, you could run into cycling issues, yes. Additionally, your center of gravity on the rifle is going to shift forward and run the risk of the rifle feeling muzzle heavy.
May 6, 201412 yr Author Ok thx Ty..so you recommend keeping it simple with an a2 extension or can the carbine buffer be made to work with certain variations?...also just looked into the VLTOR A5..nice..looks like it solves the buffer problem ..but pricey
May 6, 201412 yr If it was my rifle, I'd go with the A2 to keep headaches at a minimum. I prefer shooting to troubleshooting
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