AR Sponsor
Posted: 10/16/2009 5:16:48 PM EDT
|
I took my 9mm build out to the range for the first time today and ran into some problems.
1) What kind of accuracy can I expect from a 9mm build w/ a 7" barrel at 25 yards? The bullet holes were all over the place and nothing was consistent (lets asume it wasn't the shooter). Im worried about the consistancy of this gun b/c Im going to attach a AAC Ti-Rant to it once the paperwork comes back. Baffle strikes on a $1100 suppressor would suck. 2) Geiselle Service Trigger = BIG PROBLEMS. The trigger would not reset on a lot of the shots. What trigger are you guys running? The only other trigger I have to try is a RRA standard trigger. |
|
"All over the place" doesn't really quantify what you're saying, but I'm assuming you mean "well outside the 10 ring in all directions." At 25 yards I can hit a playing card at least 85% of the time with both my 16" RRA and my home-built 10.5" upper. That (hopefully) means that there's something amiss with your build. I assume you're using "good" ammo, not your buddy's (potentially beer-drinking-influenced) reloads...
My thought? It's your trigger. If you're having problems getting a fancy trigger to reset, it may be breaking at different levels of pressure too, which would at least pull the gun differently every time you fired. |
|
Quoted:
You might have some hammer issues if you're running a Geissele trigger in a 9mm AR. I run a JP trigger in my 9mm AR and it works great. Who made the barrel, and what do you have on the end of it? I think the barrel is a Green Mountain Chromoly Match grade barrel, but Im not 100% on that. The shots were erratic enough that I couldn't sight in the aimpoint micro. There is a 6" fake suppressor screwed onto the end of the barrel until I get AAC in. |
|
Quoted:
Its Winchester White Box 115 grain FMJ ammo. Whats a good 9mm trigger/hammer to get? Can I send it to Springfield to get it set at 4 lbs? A standard set will work fine. Go with a DPMS hammer (it's like an M16 hammer but without the hook for the auto sear), which works with EVERYTHING. And Bill Springfield can indeed set it to 4 pounds without a doubt. |
|
Quoted:
Quoted:
Its Winchester White Box 115 grain FMJ ammo. Whats a good 9mm trigger/hammer to get? Can I send it to Springfield to get it set at 4 lbs? A standard set will work fine. Go with a DPMS hammer (it's like an M16 hammer but without the hook for the auto sear), which works with EVERYTHING. And Bill Springfield can indeed set it to 4 pounds without a doubt. Not to be nitpicky, but you guys do know that it is pretty darn easy to get a single stage AR trigger down to ~4 pounds, right? All it takes is either tweaking the std trigger/hammer springs or replacing them with a set of JP style springs. You can also insert a set screw into the lower above the trigger screw to take out some pre-travel, then file the disconnector tip to make sure ti functions properly. If you have any competency with files/stones, you can also alter the hammer hooks to remove a bit of additional creep/excess pre-travel. The tweaking of the springs doesn't cost anything (no need to cut any of the spring legs, just bend them both) and the set screw mod is about $.25-50 plus a drop or two of loctite. If you don't have stones, they can cost you $25+. |
|
Quoted:
Well, I called Springfield and just ordered a DPMS 4lb set from him. It should be in the mail today so I will try it out next weekend. I was about to post a thread asking if he answers his emails. I emailed him on Wednesday and haven't heard back from him yet... But you've answered my question; he has DPMS kits, which is what I want. |
|
Quoted:
Quoted:
Well, I called Springfield and just ordered a DPMS 4lb set from him. It should be in the mail today so I will try it out next weekend. I was about to post a thread asking if he answers his emails. I emailed him on Wednesday and haven't heard back from him yet... But you've answered my question; he has DPMS kits, which is what I want. Really? I called him at 9:00am CST TODAY and he returned my call by 11:00am CST. |
|
Quoted:
Quoted:
Quoted:
Well, I called Springfield and just ordered a DPMS 4lb set from him. It should be in the mail today so I will try it out next weekend. I was about to post a thread asking if he answers his emails. I emailed him on Wednesday and haven't heard back from him yet... But you've answered my question; he has DPMS kits, which is what I want. Really? I called him at 9:00am CST TODAY and he returned my call by 11:00am CST. That's the difference between phone and email. I'll have to call him during the week, and not bother with email. |
|
Quoted:
Quoted:
Quoted:
Quoted:
Well, I called Springfield and just ordered a DPMS 4lb set from him. It should be in the mail today so I will try it out next weekend. I was about to post a thread asking if he answers his emails. I emailed him on Wednesday and haven't heard back from him yet... But you've answered my question; he has DPMS kits, which is what I want. Really? I called him at 9:00am CST TODAY and he returned my call by 11:00am CST. That's the difference between phone and email. I'll have to call him during the week, and not bother with email. Update on my comment-calling worked great, and I should have my set (I'm getting an LPK) by next weekend, when I'll have time to do something with it. Hey archer, where do you shoot? |
|
I shoot at Impact Zone in NW Houston.
I just got back from the range and the 9mm without the fake suppressor groups a lot better. Guess I will have to get use to the crappy grouping until the Ti-Rant suppressor is approved. Quoted:
Quoted:
Quoted:
Quoted:
Quoted:
Well, I called Springfield and just ordered a DPMS 4lb set from him. It should be in the mail today so I will try it out next weekend. I was about to post a thread asking if he answers his emails. I emailed him on Wednesday and haven't heard back from him yet... But you've answered my question; he has DPMS kits, which is what I want. Really? I called him at 9:00am CST TODAY and he returned my call by 11:00am CST. That's the difference between phone and email. I'll have to call him during the week, and not bother with email. Update on my comment-calling worked great, and I should have my set (I'm getting an LPK) by next weekend, when I'll have time to do something with it. Hey archer, where do you shoot? |
AR Sponsor