Hello!
I just got me a new Rock Island Ultra Tac 1911 (Single stack) in .45 and I just love it, it is super easy to shoot it very accurately and its just gorgeous.....if there wasn't this one tiny problem spoiling the fun.
Slide stop, when the magazine is empty the slide stop engages like only 2 out of 5 times. I can totally rule out user error since my fingers don't come near the slide release, I let others shoot it with the same issue. Limp wristing I can rule out also, I have no issues with any other pistol I own, and I'm a professional powerlifter, I have a choking grip on the guns.
I don't see how it can be a magazine issue I got 4 mags, two from MecGar, the other two that came with the gun, but problem persists.
I can rule out dirt, I keep my guns very clean and properly lubricated. I strip and clean after every range session.
I swapped the slide stop because twice the follower rode past the slide stop and jammed the magazine in place. I thought this was an issue with the slide stop being too short, I installed one that was longer and had more engagement surface, thinking this would fix my problem. But the problem persists.
The weird thing is, it seems the be somewhat power and projectile related, when I handload very low power 200 grain flat point plated lead bullets ( ~ 700 fp/s) it works most of the time, so does a friends very weak 230 FMJ load, but if I just increase the load the slide stop failing issue gets worse as the powder goes up.
When I dry cycle the gun the slide stop works flawlessly. The slide stop does not wiggle, nor does the magazine, I cannot get the slide stop not to work.
And one more thing - the brass gets dinged up badly, it hits the slide hard. No big issue but maybe that is related to the slide stop issue somehow? I thought the recoil spring might be kinda weak, but its is significantly stronger than a friends S&W 1911 which runs perfectly.
Thanks in advance for any help!
Here are some pics:
![Image]()
![Image]()
I just got me a new Rock Island Ultra Tac 1911 (Single stack) in .45 and I just love it, it is super easy to shoot it very accurately and its just gorgeous.....if there wasn't this one tiny problem spoiling the fun.
Slide stop, when the magazine is empty the slide stop engages like only 2 out of 5 times. I can totally rule out user error since my fingers don't come near the slide release, I let others shoot it with the same issue. Limp wristing I can rule out also, I have no issues with any other pistol I own, and I'm a professional powerlifter, I have a choking grip on the guns.
I don't see how it can be a magazine issue I got 4 mags, two from MecGar, the other two that came with the gun, but problem persists.
I can rule out dirt, I keep my guns very clean and properly lubricated. I strip and clean after every range session.
I swapped the slide stop because twice the follower rode past the slide stop and jammed the magazine in place. I thought this was an issue with the slide stop being too short, I installed one that was longer and had more engagement surface, thinking this would fix my problem. But the problem persists.
The weird thing is, it seems the be somewhat power and projectile related, when I handload very low power 200 grain flat point plated lead bullets ( ~ 700 fp/s) it works most of the time, so does a friends very weak 230 FMJ load, but if I just increase the load the slide stop failing issue gets worse as the powder goes up.
When I dry cycle the gun the slide stop works flawlessly. The slide stop does not wiggle, nor does the magazine, I cannot get the slide stop not to work.
And one more thing - the brass gets dinged up badly, it hits the slide hard. No big issue but maybe that is related to the slide stop issue somehow? I thought the recoil spring might be kinda weak, but its is significantly stronger than a friends S&W 1911 which runs perfectly.
Thanks in advance for any help!
Here are some pics:
