tanks Posted February 17, 2019 Share Posted February 17, 2019 I recently got a few new 120mm magazines. Two of them will cause the slide to lock back with a round in them. It does not seem to matter how many rounds are in those mags to start with. Any suggestions on how to fix this? Thanks in advance. Link to comment Share on other sites More sharing options...
RangerTrace Posted February 17, 2019 Share Posted February 17, 2019 You might try thinning the follower a bit where it contacts the slide stop. The best solution I found was using a Wilson Combat slide stop VS. the CKArms. Not sure what the exact difference is, but it worked for my IDPA guns where lock back matters. Link to comment Share on other sites More sharing options...
tanks Posted February 17, 2019 Author Share Posted February 17, 2019 Yeah, I was actually going to use that gun in an IDPA match in CCP division and decided not to due to that issue. Link to comment Share on other sites More sharing options...
wgj3 Posted February 17, 2019 Share Posted February 17, 2019 Purely an issue with the interface between the followers and slide stop. Different followers designed to have the "shelf" that engages the stop sit lower is one solution. Another is using a different slide stop as Trace mentioned above. You can also buy aftermarket 126mm mags with wedge basepads from MBX and go that route. Link to comment Share on other sites More sharing options...
Bluemooncricket Posted February 19, 2019 Share Posted February 19, 2019 On 2/17/2019 at 11:13 AM, tanks said: Yeah, I was actually going to use that gun in an IDPA match in CCP division and decided not to due to that issue. I don’t think it would fit into the CCP box anyway. Link to comment Share on other sites More sharing options...
Moloch38 Posted February 19, 2019 Share Posted February 19, 2019 16 hours ago, Bluemooncricket said: I don’t think it would fit into the CCP box anyway. Would be interested to know for sure, I was planning to shoot CCP with one for fun. Link to comment Share on other sites More sharing options...
Bluemooncricket Posted February 19, 2019 Share Posted February 19, 2019 3 hours ago, Moloch38 said: Would be interested to know for sure, I was planning to shoot CCP with one for fun. I’ve never tried an actual box but have used calipers set to the box dimensions and my Tactical 4.0 (modified to accept a 120mm magazine) was too tall. The Ambi safeties make them a bit too wide as well. Link to comment Share on other sites More sharing options...
Excursion12 Posted February 25, 2019 Share Posted February 25, 2019 STI factory Gen 2 mags? I got several gen 2 mags from brownells that did this. Contacted STI, they sent newer followers that had a lower shelf. Solved the issue. You could cut down the shelf that lifts the slide stop until they work correctly, or try contacting STI through their warranty form on the website. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now