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So my previous post about this rifle had reminded me about the strange way this A2 was set up when I first bought it. This is a completely different topic so I figured I would just create a new thread. Also let me just say that I wasnt able to get a lot of information about the reasoning for this set up from the gentleman I had bought it from other then he never had any problems with the couole hundred rounds he put through it and thats how he bought it. Anyways the picture Im posting with this is the rifle right after I originally bought it from this gentleman via private sale (yay Arizona). So heres a rundown of how this was set up: Bushy XM15-E2S lower (Windham BFI days), Colt A2 upper, Colt 5.56 1/7 20" barrel, low pro gas block (non adjustable), rifle length gas system, free float quad rail, Colt "half moon" BCG, fixed rifle stock with a carbine buffer spring and a carbine buffer and lastly a Giessele SD3G flat faced single stage trigger.
So heres what I didnt and still dont understand about how this rifle was set up: Why the heck would you use a carbine length spring and buffer in a rifle length fixed stock with a 20" barrel with a 1/7 twist and a rifle gas system? I thought maybe the gas block is adjustable then that would sorta make sense but not its not. So I was looking at this A2 carry handle upper with no FSB, a low pro gblock, ff quad rail, a rifle stock and gas system but with a carbine buffer spring and buffer... and ofcourse the 20" 1/7 barrel. Lol I was like what in the .. did I get myself into.
I was thinking it might of had something to do with this Giessele SD3G trigger it has because.. its fast.. like real fast. But if im correct Im pretty sure you would want to beef up to a heavier buffer weight when your cycling at higher rates and you would want to lighten things up when firing slower rates to speed things up.. so Im still just boggled honestly. Im not sure if someone who had it before me just threw a bunch of parts together for a quick sale but the guy I purchased it from said it ate about 500 rounds flawlessly.. IF he was telling the truth though.. I didnt care to find out lol. Any ideas of why someone would have this set up? View attachment 157014
So heres what I didnt and still dont understand about how this rifle was set up: Why the heck would you use a carbine length spring and buffer in a rifle length fixed stock with a 20" barrel with a 1/7 twist and a rifle gas system? I thought maybe the gas block is adjustable then that would sorta make sense but not its not. So I was looking at this A2 carry handle upper with no FSB, a low pro gblock, ff quad rail, a rifle stock and gas system but with a carbine buffer spring and buffer... and ofcourse the 20" 1/7 barrel. Lol I was like what in the .. did I get myself into.
I was thinking it might of had something to do with this Giessele SD3G trigger it has because.. its fast.. like real fast. But if im correct Im pretty sure you would want to beef up to a heavier buffer weight when your cycling at higher rates and you would want to lighten things up when firing slower rates to speed things up.. so Im still just boggled honestly. Im not sure if someone who had it before me just threw a bunch of parts together for a quick sale but the guy I purchased it from said it ate about 500 rounds flawlessly.. IF he was telling the truth though.. I didnt care to find out lol. Any ideas of why someone would have this set up? View attachment 157014