RIA Tac II: Please Help!

[Panzerschwein]

Hello all. Well today, I finally got my Rock Island Armory Tac-II Ultra .45 ACP single-stack 1911 out to the range.

I fired 200 rounds of Winchester and Remington 230 grain ball through the pistol. I did thoroughly clean and properly lubricate the pistol the night before. I was using the Act magazine that came with the gun, along with two Wilson Combat ETM magazines.

So I was having some problems.

I was having premature slide lock, where the slide locked back on half-full magazines, about every 3 mags. This happened in total about 6-7 times, with all magazines.

So I came on and got online and asked Google. Google told me that this is probably caused from the bullets in the magazine hitting the little stop inside the magazine well. So I looked inside the magazine release showed some copper deposits where it appears the bullets were rubbing on it:





So I also read that you can carefully file the stop so that the bullets aren't rubbing on it. But I am wondering if that is what I need to do, or something else. Should I send it back to Rock Island? If it's an easy fix, I have the tools to do it. I'd rather not have to fool with shipping and all that. Other than that, the gun seemed to run pretty good, but this certainly seems to be a problem. If anybody could please help me, I'd appreciate it! Thanks!!

PS: I was very careful to not accidentally hit the slide stop with my thumb during firing, or limp wrist.

 

[RON in PA]

RIA advises a break-in of 500 rounds. If your problem continues past that point contact them. Also my experience with 1911s is that they are very picky about magazines. Try a few more.

 

[Coldfinger]

With both RIA 1911s I owned I replaced everything that wasn't staked in or otherwise permanently attached with cylinder and slide or Wilson combat parts and pieces. I know, adding well over 100$ in parts to an entry model 1911 doesn't make much sense. However, the fit and function will be greatly improved. Also polish the feed ramp, ream the chamber, polish contact surfaces on trigger bars, and replace all springs with quality Wolf springs.
Just my 2 cents. I love the 1911. Enjoy the Rocks because they give me an excuse to tear it apart and make it better. I do specialize in the M1911 and the AR15. I have completed advanced armorer courses on both platforms. The 1911 is by far my favorite to work on.

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[Wreck-n-Crew]

With both RIA 1911s I owned I replaced everything that wasn't staked in or otherwise permanently attached with cylinder and slide or Wilson combat parts and pieces. I know, adding well over 100$ in parts to an entry model 1911 doesn't make much sense. However, the fit and function will be greatly improved. Also polish the feed ramp, ream the chamber, polish contact surfaces on trigger bars, and replace all springs with quality Wolf springs.
Just my 2 cents. I love the 1911. Enjoy the Rocks because they give me an excuse to tear it apart and make it better. I do specialize in the M1911 and the AR15. I have completed advanced armorer courses on both platforms. The 1911 is by far my favorite to work on.

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Your reaming all chambers or just the RI chambers? Reason I'm asking is that some chambers are a bit oversized from the factory and reaming doesn't seem necessary and even counterproductive.

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[Coldfinger]

Just the RIA and my R1 required it.

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[Harleytoo]

I know, adding well over 100$ in parts to an entry model 1911 doesn't make much sense. However, the fit and function will be greatly improved.

Actually, that makes perfect sense. Upgrading a milspec 1911 is part of the fun.

 

[BLB68]

RIA advises a break-in of 500 rounds. If your problem continues past that point contact them. Also my experience with 1911s is that they are very picky about magazines. Try a few more.

I'd say he has more of a fitting issue than a break in issue. I'd venture a guess that whatever grade of steel the slide stop is made of is harder than the copper bullet jackets that are rubbing up against it.

IMO, call RIA and tell them what's going on. They should be happy to do the fix regardless of break in period.

 

[sidreilley]

In his book on the combat pistol (written before RIAs existed), Bill Wilson mentions this problem and says that he pre-empts it by grinding a small horizontal groove in the rear face of the slide release lever where the detent bears on it. He recommended it as a standard modification when doing even a basic combat pistol job. It seemed to make sense even though I've never experienced the problem, I'd take his word. I believe that RAI has/is incorporating this mod on their pistols. Best course of action would be to call them and discuss the matter.

Cheers

 

[railroader]

With the slide off the frame and the slide stop installed insert a loaded mag. You should be able to see how much clearance there is between the bullet and the stop. If it is really close you can probably file some off of the stop. You don't want to take off too much because the mag follower will miss the stop and the slide won't lock back when shot until empty. Now try an empty mag and see how much you can file on the stop and still have it function properly with an empty mag in the gun.

 

[Wreck-n-Crew]

Just the RIA and my R1 required it.

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Gotcha.

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