Dumb theory question (low mass bcg, heavy buffer) – ar15.com gas efficient cars

Not if the low mass and low gas aren’t strong enough to reliably cycle a dirty/sandy gun with the pressure of a full mag riding on the bcg.”””[color=#0000ff] A carbine buffer combined with a full auto carrier is going to be the most reliable and efficient set up as long as your rifle is timed and gassed correctly for it[/color]”””.Agreed! I feel like it wasn’t until lower powered steel cased ammo became more common to shoot for budget/value in AR’s; did we have much need for heavy buffers and such because the gas port size was true/standard each spec for carbine’s and the spec for rifles for gas port size.

Both of my manufacturer built/assembled AR’s (1 middy 14.5" and 1 carbine 16") came with H2 buffers and run well. The rifles and pistols I’ve assembled from quality parts wear H2 buffers and the pistols have H3’s in them; none of them have choked yet and all eject between 3:30 to 4:00 O’clock. Every one of these barrels has a different gas port size though from pistol to pistol, middie to middie, etc. from manufacturer to manufacturer… Barrels conclude of a PSA CHF 14.7", Green Mountain 14.5", Spikes 14.5" & 16", Noveske 10.5", DC-Machine 10.5". The larger than spec port size(s) doesn’t bother me as all the aforementioned cycle everything from Wolf, Tula, PMC to Federal and IMI. I’d rather have a bit larger gas port that I can tune to my liking and run every kind of ammo I can feed them, especially during a panic/draught or SHTF situation. YMMV.

As to the OP’s question… OP, nothing is a substitute for first hand experience. Go to the range before your class & take a hundred and fifty or so rounds of the ammo you intend to use in said class. Trial and error will be the best solution to your question. Tagged for interest as your question intrigues me and thanks for your post!

Agreed! I feel like it wasn’t until lower powered steel cased ammo became more common to shoot for budget/value in AR’s; did we have much need for heavy buffers and such because the gas port size was true/standard each spec for carbine’s and the spec for rifles for gas port size.

Both of my manufacturer built/assembled AR’s (1 middy 14.5" and 1 carbine 16") came with H2 buffers and run well. The rifles and pistols I’ve assembled from quality parts wear H2 buffers and the pistols have H3’s in them; none of them have choked yet and all eject between 3:30 to 4:00 O’clock. Every one of these barrels has a different gas port size though from pistol to pistol, middie to middie, etc. from manufacturer to manufacturer… Barrels conclude of a PSA CHF 14.7", Green Mountain 14.5", Spikes 14.5" & 16", Noveske 10.5", DC-Machine 10.5". The larger than spec port size(s) doesn’t bother me as all the aforementioned cycle everything from Wolf, Tula, PMC to Federal and IMI. I’d rather have a bit larger gas port that I can tune to my liking and run every kind of ammo I can feed them, especially during a panic/draught or SHTF situation. YMMV.

As to the OP’s question… OP, nothing is a substitute for first hand experience. Go to the range before your class & take a hundred and fifty or so rounds of the ammo you intend to use in said class. Trial and error will be the best solution to your question. Tagged for interest as your question intrigues me and thanks for your post!