Short AR setups

[Alan]

In your experience, what hardware changes have had the biggest effect on taming gas and keeping reliability high for builds between 10.5 and 12.5"?

 

[Troy Albino]

Buffer weight plays a major role and I usually start with an H2 or H3 depending on the setup. A heavier buffer can really help to slow down the bolt speed especially when you're dealing with all that extra pressure from the can. If you're still experiencing harsh recoil impulse, definitely consider checking out Sprinco springs. One thing that made a significant difference for my 11.5" was switching to a low back pressure can mount. Both KeyMo and Plan B seem to vent better than the standard direct thread setups. It’s a lot of trial and error. Start with the AGB, gradually increase your buffer weight and see how it goes from there.

 

[Magus]

My 7.5 is going to be a 10.5 sometime in the spring. Anything past 100 feet looks like a shotgun pattern.
Also, never EVER use a pencil barrel on a pistol. medium or heavy ONLY!

 

[MrVee]

 Using those shorter setups really hammered home for me that managing the gas is the most crucial thing. Once I finally dialed that in, it felt like everything else just started to click into place.

 

[Magus]

I'm thinking of putting an FRT in it. if it's going to spray the woods, might as well be fun right?