Posted: 7/4/2025 2:00:14 PM EDT
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Good afternoon, I've got a NSSF 45 that I really like but am experiencing a failure to feed once every three or four mags or so. Ammo is American Eagle 230 gr FMJ and mags are Mec-Gar and KCI 8 rounders. The gun has been doing this since new and I'm about 150 rounds in. It seems to happen with and without the can. I am new to the 1911 platform but not handguns in general. I greased the gun per instructions I found online but the problem remains nonetheless. I've read conflicting reports of 1911s needing a break-in period so maybe it is that? The gun shoots great so I'd love to get this ironed out if possible. I've also hand cycled it several hundred times without letting the slide slam forward. The pic attached is not great but it's what I have. Thanks in advance for any help. Attached File |
| Is the slide locked back but not empty? There have been reports of some Turkish 1911’s having weak detent spring for the safety/slide stop. There are also reports where the slide catch interface to the detent permits the detent to slide off. Extractors commonly need tuned to get the proper case tension when feeding in the firing cycle. |
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Originally Posted By VASCAR2: Is the slide locked back but not empty? There have been reports of some Turkish 1911’s having weak detent spring for the safety/slide stop. There are also reports where the slide catch interface to the detent permits the detent to slide off. Extractors commonly need tuned to get the proper case tension when feeding in the firing cycle. Thank you for the response. I didn't even think of that but when I slingshot the slide it does go right into battery without issue so I will check that Sunday when I shoot it again. |
Joined:
Apr 2022
Posts:
385
EE: 100% (7)
CO, USA
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If there is a break in period it is likely due to the tisas cerakoting everything, including the sear engagement surfaces and the inside of the slide including the breech face. as you shoot it, this cerakote will wear off and improve the trigger and feeding. I took my new Tisas apart and barely stoned the sear surfaces and took my 6lb trigger to 3.5lb. Literally changed nothing but remove the cerakote.The cerakote increases friction and this friction affects feeding as well; as the rim of the case slides on the breech face as it chambers. If you polish this area, it should improve feeding. Also, you should check extractor tension and tune it accordingly. Youtube is your friend here. Finally I'll say that my Tisas recoil spring seems way out of spec. Very undersprung. I don't think it would be a bad thing to replace every spring in the gun with a factory spec spring from wolf or wilson combat. a weak recoil spring could cause issues feeding rounds. All that said, it looks like your picture is showing the slide locked back. you could have bumped the slide catch during recoil with your support hand. |
| Take the barrel and spring out and make sure the slide moves back and forth easily. I had that happen on a pistol after it got duracoated. They over sprayed the rails and I had to use some bartenders helper and work the slide back and forth a few hundred times to get the paint out of the rails. It could also be the slide stop spring or out of spec slide stop. |
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Originally Posted By M4BlackRifle: Buy a Wolff recoil calibration spring pack, and extra power detent spring. On my Tisas B45, every single spring in it had incorrect weights. Once I put in the kit, it ran better than my Colts. |
| Ok so I got it to do the same malfunction again today and it is indeed the slide lock catching. I started shooting one handed only to see if it is me actuating it accidentally and have not gotten it to do it again. I've never had this issue with any other handgun so it is either how I'm holding this particular gun or there is indeed something wrong with it. Thanks all for the suggestions so far! |