2024年6月29日 · Had folks asking about 9mm ARs working with the new item I created.Yep it works. Worked the trigger thru the range of the things capabilities. Some folks with a better trigger finger than I have I'm

2019年11月13日 · I will no longer be updating this thread as new information becomes available. All of this information, with current updates, is available on my site blowback9.com under

2016年7月6日 · Okay, crazy question so bear with me. Why does an AR9 have to be a blowback system? From what I have read, the 9mm blowback has a sharp recoil (not unbearable or anything, just a heavier recoil than e

2018年5月30日 · My AR 9 (glock mag fed PSA lower homebuild upper) is using a standard milspec charging handle. A buddy of mine w/ a registered FA lower has a 9mm upper using colt mags, he also uses a standard milspec charging handle. If you are gonna spend $ on a charging handle have you considered a left side charging upper?

2020年3月9日 · I have my 9mm PCCs zero'd at 25 yards currently. Been doing some research on different 9mm zeros and thinking about possibly changing it. The farthest I shoot them out to is 100-125 yards on steel targets. I came across the below graph and chart for 9mm zeros. It has made me consider possibly trying and changing to a 5 or 7 yard zero.

2019年4月22日 · I have a Colt 9mm AR 15 6951. What would the maximum effective range be for this with 124 grain FMJ?I'm guessing no more than 100 yards but I really don't know.

2022年7月5日 · [ARCHIVED THREAD] - AR9 (9mm) - Buffer and Buffer Spring Build Questions? (Page 1 of 2)

2018年11月22日 · I have a pair of 9mm carbines that are pretty neat...a Marlin Camp 9 rifle and a Kel-Tec Sub-2000 folding 9mm carbine. However, when it comes to an AR platform in pistol or rifle, I prefer 300BO.

2009年5月8日 · Right now I'm looking at the JP low mass hammer. It looks like it would glide smoothly on a ramped 9mm bolt.What about the cheaper Rock River 9mm hammer? anyone? thoughts?

2017年12月9日 · I imagine most will agree, determining what BCG and buffer weight to use for 9mm blowback is something of a dark art. I started out with a ~23 oz total bolt + buffer, following the