canbuster Posted July 17, 2020 Share Posted July 17, 2020 (edited) Help please. I had only ~300 rounds through my new Defiant Stock Master 9mm small frame when the Viper red dot died. After receiving the replacement from Vortex and reassembly yesterday, I noticed that I can pull the slide really far back and the slide would be stuck back without the slide stop engaged. I don't remember this happening at the range or in past dry firing practices. The slide will move forward when I lightly tap the back of the slide. The recoil rod and spring are stock. I can reproduce this problem with or without the barrel, recoil rod, and spring installed. The slide can move so far back, I can see the sear through the ejection port. None of my other Tanfoglio slides can move this far back, large or small frames, 4.5" or 4.75" barrels. Please let me know if you have some ideas on what's causing this and how to fix it. I did search the forum last night and came up empty. Thank you! Edited July 17, 2020 by canbuster SN blur Link to comment Share on other sites More sharing options...
Dan4147 Posted July 17, 2020 Share Posted July 17, 2020 Wow. That slide is stroked. Really I don’t have that model, only a old small frame 9mm and a Gold Team 9mm. My GT slide is stroked .350 and it does NOT go back that far. Link to comment Share on other sites More sharing options...
zombywoof Posted July 17, 2020 Share Posted July 17, 2020 Are you sure the slide stop pin is through the barrel correctly Link to comment Share on other sites More sharing options...
canbuster Posted July 17, 2020 Author Share Posted July 17, 2020 Thanks Dan. I had no idea Stock Master's slide comes stroked, see comparison with my older small frame Mossad with a 4.75" barrel. So now the question is how do I stop the slide from sticking to the rear? Would a Henning shock buffer fix it, or should I try something else first? BTW, Zombywoof, the slide stop is properly installed. Link to comment Share on other sites More sharing options...
kneelingatlas Posted July 18, 2020 Share Posted July 18, 2020 It's probably getting stuck on the ejector, take it out and try it. Link to comment Share on other sites More sharing options...
canbuster Posted July 18, 2020 Author Share Posted July 18, 2020 20 minutes ago, kneelingatlas said: It's probably getting stuck on the ejector, take it out and try it. Thanks, Atlas. When it's stuck back, it's all the way past the ejector, see photo in the first post. Link to comment Share on other sites More sharing options...
canbuster Posted July 19, 2020 Author Share Posted July 19, 2020 Thanks everyone. Fixed it, by shooting it Link to comment Share on other sites More sharing options...
FALAR Posted July 19, 2020 Share Posted July 19, 2020 (edited) So, IFG spec'd these out a bit more than just mixing and matching it appears. Edited July 19, 2020 by FALAR Link to comment Share on other sites More sharing options...
Whoops! Posted July 19, 2020 Share Posted July 19, 2020 39 minutes ago, FALAR said: So, IFG spec'd these out a bit more than just mixing and matching it appears. It appears all the slides with the new style cuts are stroked. Which, honestly, is a great move for Tanfo. Better reliability and recoil characteristics. Link to comment Share on other sites More sharing options...
FALAR Posted July 19, 2020 Share Posted July 19, 2020 Wonder if they will make it standard on all the "elite" models eventually? I think it particularly makes sense for the large frame guns in .38/10mm/.45 Link to comment Share on other sites More sharing options...
canbuster Posted July 19, 2020 Author Share Posted July 19, 2020 17 hours ago, Whoops! said: It appears all the slides with the new style cuts are stroked. Which, honestly, is a great move for Tanfo. Better reliability and recoil characteristics. So this means IFG Defiant Limited Master also has a stroked slide, maybe also the Defiant Stock I? https://patriotdefense.com/tanfoglio-defiant-stock-i-small-frame-ifg/ Link to comment Share on other sites More sharing options...
MikeBurgess Posted July 20, 2020 Share Posted July 20, 2020 Looks like it may be the hammer catching on the firing pin block possibly round the top of the hammer or the back of the FPB ? Link to comment Share on other sites More sharing options...
canbuster Posted July 20, 2020 Author Share Posted July 20, 2020 Interesting, thanks @MikeBurgess. I'll check for that Link to comment Share on other sites More sharing options...
Smithy54 Posted July 29, 2020 Share Posted July 29, 2020 On 7/20/2020 at 9:23 PM, canbuster said: Interesting, thanks @MikeBurgess. I'll check for that Check that you have put the sear spring leg back down into the frame .I had my slide stick back open after I had done a strip down to clean and refitted the saftey back into the sear block and forgot to put the sear spring leag back into it,s lowered position that keeps the safety in it,s place. Link to comment Share on other sites More sharing options...
MikeBurgess Posted July 30, 2020 Share Posted July 30, 2020 20 hours ago, Smithy54 said: Check that you have put the sear spring leg back down into the frame .I had my slide stick back open after I had done a strip down to clean and refitted the saftey back into the sear block and forgot to put the sear spring leag back into it,s lowered position that keeps the safety in it,s place. in the first picture you can see the spring is in correctly, but good thought I have mangled that spring before doing that Link to comment Share on other sites More sharing options...
canbuster Posted July 31, 2020 Author Share Posted July 31, 2020 On 7/20/2020 at 10:55 AM, MikeBurgess said: Looks like it may be the hammer catching on the firing pin block possibly round the top of the hammer or the back of the FPB ? Ok it's not that since the back of the FPB is way past the hammer. Anyways, it doesn't stuck back any more, but still somewhat sticky to the back, feels like it's cycling slower Link to comment Share on other sites More sharing options...
Dan4147 Posted July 31, 2020 Share Posted July 31, 2020 Canbuster I would try your idea of brass shock buffer. I got some and they reduce the stroke about .105 (because you also add the thickness of the shoulder on the guide rod). Shoot a few rounds then pull the slide and look at the buffer. You can see where it is striking the frame/tunnel and file/relieve if necessary. I bet that will insure cycle and prevent possible damage somewhere. Link to comment Share on other sites More sharing options...
canbuster Posted August 22, 2020 Author Share Posted August 22, 2020 Henning brass shock buffer installed, case closed Link to comment Share on other sites More sharing options...
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