whittlebeast Posted January 25, 2011 Share Posted January 25, 2011 I was at the range the other day with a long time shooter. He popped a loaded mag into my new EAA/Tanfoglio Witness Match and was shocked that the slide automatically released the lock and fed the first round. The gun was ready to rock and roll. He thought that there was something was wrong with my gun as he had never seen one do that. After he questioned it I did a little playing with my gun as it was totally unloaded and noticed that all it took was a solid thump on the butt of the gun to release the slide. Is this by design on the race guns or is this out of the ordinary? Here is a demo video Andy Link to comment Share on other sites More sharing options...
Duane Thomas Posted January 25, 2011 Share Posted January 25, 2011 It's "out of the ordinary" in the sense that the guns are not, technically, supposed to do that. On the other hand, the full-sized, medium-frame Glocks (17/22, 34/35, etc.) are famous for doing it on occasion if you slap the mag in hard enough. Link to comment Share on other sites More sharing options...
alpha-charlie Posted January 25, 2011 Share Posted January 25, 2011 While in the academy my Beretta did it, the Sigs did it and the S&W's did it. My dad's Beretta did it also. My XD does it and so does my Glock. It happens. Link to comment Share on other sites More sharing options...
Kyle O Posted January 25, 2011 Share Posted January 25, 2011 Well, there is one thing less to do on the clock. Link to comment Share on other sites More sharing options...
Got Juice? Posted January 25, 2011 Share Posted January 25, 2011 Your slide lock is worn. Replace it and also check the slide pin. If both are marginal, replacing only the lock will not help. Link to comment Share on other sites More sharing options...
The_Vigilante Posted January 25, 2011 Share Posted January 25, 2011 He indicated it was a new pistol. Not sure whether it was just new to him or NIB. Link to comment Share on other sites More sharing options...
whittlebeast Posted January 25, 2011 Author Share Posted January 25, 2011 The gun is about 10 weeks old with a 2011 date code. About 300 rounds total. Andy Link to comment Share on other sites More sharing options...
Got Juice? Posted January 25, 2011 Share Posted January 25, 2011 Hm. Without handling it, i can't say. Typically I see this on guns that have had a few thousand rounds down the pipe. Link to comment Share on other sites More sharing options...
Graham Smith Posted January 25, 2011 Share Posted January 25, 2011 I think that this will happen if the slide lock is not full engaged - i.e. not fully pushed up into place. Link to comment Share on other sites More sharing options...
ParaGunner Posted January 25, 2011 Share Posted January 25, 2011 I can normally get my Para limited gun to do this if I slap the mag in hard enough. Link to comment Share on other sites More sharing options...
Kyle O Posted January 25, 2011 Share Posted January 25, 2011 I used to own a s&w sigma, and in the reading materials it was stated that it does this by design, to facilitate a faster slide lock reload. So, it may not be an accident, or anything wrong with it. Link to comment Share on other sites More sharing options...
Gregory_k Posted January 25, 2011 Share Posted January 25, 2011 normal. Link to comment Share on other sites More sharing options...
GrumpyOne Posted January 25, 2011 Share Posted January 25, 2011 (edited) I don't know if it's normal, But I've got a few that do that, very, very consistently. It helps on a stage every once in a while. Edited January 25, 2011 by GrumpyOne Link to comment Share on other sites More sharing options...
kv501 Posted January 25, 2011 Share Posted January 25, 2011 My M&P9 L has done this since day one. Some people say that theirs also slam charges but sometimes doesn't strip a round off of the mag; I have never had it not strip one. I have tried seating the mag harder, softer, funny angles, etc. and can't get it not to feed. The reason I mention it is because after I became sure that it will always strip another round I started to use it to my advantage by running the gun dry if the situation gave an advantage. I know some people will say I am waiting to get burned (which I can understand). I did make up my mind that if it happens once I'm done. Link to comment Share on other sites More sharing options...
pjb45 Posted January 25, 2011 Share Posted January 25, 2011 I know of one GM (Champion of numerous matches) that has his guns do it. On a 1911 or Widebody it is not a normal operation. Link to comment Share on other sites More sharing options...
blind bat Posted January 25, 2011 Share Posted January 25, 2011 Physics... It's the law. He probably got a gun with a slide stop on the lower end of thickness tolerance for the area that engages the slide or possibly the slide notch was cut too shallow. Being a lefty, I massage my slides stops so they will drop very easily since I'm using my trigger finger to activate the slide lock. Most of my guns with filed slide stops will drop the slide with a good, heavy "thud" of a reload. Link to comment Share on other sites More sharing options...
want2race Posted January 25, 2011 Share Posted January 25, 2011 If the slide stop lever has a spring to lower it (Glock, M&P etc), then the gun will do this by bumping the grip in a forward motion. 1911's (and designs) don't a have a spring to lower the slide stop lever, the slide physically lowers it when pulled rear ward. Link to comment Share on other sites More sharing options...
Gregory_k Posted January 25, 2011 Share Posted January 25, 2011 you can Slam load a 1911, well at least I can. Link to comment Share on other sites More sharing options...
Duane Thomas Posted January 25, 2011 Share Posted January 25, 2011 My G34 would do this with some regularity. I did, on one and only one occasion, have the gun fail to feed the top round out of the mag when this happened. A tug on the slide rectified the problem. (Had to happen during a match, of course.) The "slide goes forward automatically" (no pun intended) effect hasn't happened to me in years. Guess I just don't whack on the gun as hard as I used to. Link to comment Share on other sites More sharing options...
TannerB Posted January 28, 2011 Share Posted January 28, 2011 Mine do it if I do it correctly, I like it. Ive always been told certain guns do it at a 45 degree angle. Link to comment Share on other sites More sharing options...
CSEMARTIN Posted January 28, 2011 Share Posted January 28, 2011 Andy, you might want to get out of the habit of sweeping yourself when you are unloading your gun. Maybe it's the angle of the video, but it looks like the muzzle was pointed directly at your pinkly finger at 0:02 and your pinky and ring finger at 0:03. Link to comment Share on other sites More sharing options...
chefcs5 Posted January 28, 2011 Share Posted January 28, 2011 My G34 would do this with some regularity. I did, on one and only one occasion, have the gun fail to feed the top round out of the mag when this happened. A tug on the slide rectified the problem. (Had to happen during a match, of course.) The "slide goes forward automatically" (no pun intended) effect hasn't happened to me in years. Guess I just don't whack on the gun as hard as I used to. Ive gotten god at slapping the mag in hard enough that it will go forward on my g17. g34, or g24 almost every time. not had one yet that didnt chamber a round. I noticed at first it would do it sometimes now I can get it to almost every time! I actually like it wish it would do it 100% of the time Link to comment Share on other sites More sharing options...
818-DVC Posted January 28, 2011 Share Posted January 28, 2011 I had a custom 2011 that used to misengage the slidestop, and an open breach with a mafazine would sometimes slide into battery and load itself while It sat on a bench or in my hand. I once inserted a full mag, and dropped the mag with the slide locked, and the mag dropped but the gun went into battery and the millisecond the the slide had to drop, it chambered a round. Really scared me when I saw the cartridge in the chamber. It was a HPF Heavy pucker factor! JL Link to comment Share on other sites More sharing options...
waktasz Posted January 29, 2011 Share Posted January 29, 2011 (edited) My M&P always does it and I like it. I don't have to SLAM the mags home to do it either. Just seat them positively as anyone would when doing a reload in a competition. There are tons of posts on the M&P forum of people complaining about it though and wanting it "fixed". Edited January 29, 2011 by waktasz Link to comment Share on other sites More sharing options...
saibot Posted January 31, 2011 Share Posted January 31, 2011 My S&W M&P FS9 has done that since it was new. It freaked me out at first but once I figured out how to do it when I wanted to I now use it to save me time when I run her dry. Link to comment Share on other sites More sharing options...
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