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Posted: 9/1/2010 2:11:04 PM EDT
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Hello,
I recently purchased a Colt 6450. After cleaning and greasing the gun I put 1500 rounds of Remington green box 115 grain FMJ as well as several remington hollowpoints through it over 2 days using C products magazines. I had multiple failures to feed and/or fire which I could clear by racking the bolt. I also had one C products magazine follower stick rendering the magazine inoperable and another magazine spontaneously fall from the gun after I thought that it was seated. I am trying to identify why I had so many problems. Please share you thoughts. Are these guns generally unreliable? Is it the type of ammunition or magazines? Or are my expectations too high ( I shot next to several others who have quality 5.56 ar15 and none of them had these problems ) ? Thank you very much for your help! |
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Just for FYI....you will get alot more help in the rimfire/pitol caliber ar section...there are tons of guys with 9mm ar's in there.
But in response to your issue, you have one of thebest 9mm ar's, and it should be running great. Personally, I had a ton of the same exact problems until I bought the metalform colt mags and i stopped using remington ammo. The metal form mags seem to work best in colts...from what I have seen. The remington ammo I was using was slightly shorter in over all length than other brands. I started shooting winchester white box from wally world and my own reloads and havent had a problem since. I only have a problem with remington 9mm ammo, and only in that gun.... I have yet to reliably feed holowpoints... Hope this helps... |
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It sounds like a mag problem. Go the the Industry section and post a message on the C-Products forum or call C-Products - they will take care of you.
My 6430 shoots everything, 115 gr, 124 gr 147gr, hollow points, fmj - it likes the 124 and 147 better.I use mostly Colt 32 and 20 rounders (made by Metalform). I hace a couple of polymer mags made by Pro Mag  that are flawless as well:
Pro Mag 9mm Colt AR-15 Mags @ Brownells Brownells also carries the Metalform Colt 9mm mags |
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I've been enjoying mine now for a few months, never one FTF/E with either the 2 original Colt mags or CProducts. I've used mostly 115g Winch WB tho', plus my handloads, so can't speak for other brands.
This has fast become one of my favorite guns and also resides bedside for a better nights sleep. RD |
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Quoted:
After cleaning and greasing the gun... I'm hoping you meant oil, not grease? Don't use grease on an AR. I have both CProducts and Metalform mags, and the Metalform mags are superior quality. What type of mags were included when you purchased the carbine? Did the failures occur with the factory mags, or did you only try CProd mags? In my limited experience (500 rds), Remington UMC is weak crap. Try some different / higher quality ammunition. |
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I have put another 2000 rounds through the rifle since my intial post using Metalform and the newer C products magazines (recently had the feed lips modified) with 100% function using a similar mix of ammunition.
Deltaheavy, I do grease rather than oil my AR's as per James Yeager, who was one of my instructors. It works well. |
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Quoted: I do grease rather than oil my AR's as per James Yeager...
To clarify, is he recommending something like Slip2000 or TW-25B? I'll go along with that. But if you're whipping out some Korean-era axle grease, hells no. FWIW, Colt and Bushmaster recommend "light gun oil" and CLP respectively. Glad you got it running. |
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