muncie21 Posted April 24, 2020 Share Posted April 24, 2020 I have an older SVI 2011 that I installed the SV single sided-wide safety on and really enjoyed the angle and feel. Sooo... I says to myself, why not buy one to install on my Limited STI . It only took about 5 seconds to figure out that something was wrong after I installed it. Trigger didn't feel right and the hammer would only drop to half-cock. When I compared the STI safety to the SVI one, I noticed major differences in the action/contour. So my question for the group- Is this an issue of minor fitting? Or are SV safeties not designed to fit into STI frames and I'm basically screwed? Link to comment Share on other sites More sharing options...
3GN Posted April 24, 2020 Share Posted April 24, 2020 Whenever u buy new safety u must fit it.YES SV parts is 100% compatibility with STI frame Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
kk4364 Posted April 24, 2020 Share Posted April 24, 2020 Not a gunsmith but I would look at the sear and see where it is, and compare that before you go any further. I had a fitting issue with Svi thumb safety and it ended up making contact with the sear, that was on an Sti component 2011. Sent from my SM-G975U using Tapatalk Link to comment Share on other sites More sharing options...
kk4364 Posted April 24, 2020 Share Posted April 24, 2020 That being said, it should work. Look on SVI's website in tech notes , it shows you basically what material needs to be removed. Sent from my SM-G975U using Tapatalk Link to comment Share on other sites More sharing options...
muncie21 Posted April 24, 2020 Author Share Posted April 24, 2020 (edited) Thanks for the feedback guys. I've fit safeties on CZs before but this is my first 1911/2011. The contour of the safety (internal) is what threw me off, because it was very different than the one I removed. I viewed the Atlas video just now (thanks 3GN for sharing that) on fitting safeties so might give that a go later this weekend. Edited April 24, 2020 by muncie21 Link to comment Share on other sites More sharing options...
3GN Posted April 24, 2020 Share Posted April 24, 2020 Just go slowly Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
kk4364 Posted April 24, 2020 Share Posted April 24, 2020 What he said! (Go very slow!) I've ruined a couple safeties fitting them myself. Sent from my SM-G975U using Tapatalk Link to comment Share on other sites More sharing options...
Glockster1 Posted April 24, 2020 Share Posted April 24, 2020 USPSA says you can't disable grip safeties but there are so many shooters using 1911's/2011's that have pinned grip safeties and match officials don't even checks guns. They only do ammo chrono checks. Link to comment Share on other sites More sharing options...
Sarge Posted April 24, 2020 Share Posted April 24, 2020 13 minutes ago, Glockster1 said: USPSA says you can't disable grip safeties but there are so many shooters using 1911's/2011's that have pinned grip safeties and match officials don't even checks guns. They only do ammo chrono checks. Read the rule again. Thumb safety is primary safety on those guns. Primary safety can’t be disabled. Officials don’t check for that because they know better Link to comment Share on other sites More sharing options...
3GN Posted April 24, 2020 Share Posted April 24, 2020 Read the rule again. Thumb safety is primary safety on those guns. Primary safety can’t be disabled. Officials don’t check for that because they know betterSarge, I believe he just wake up when he write post He confuse me in one moment Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
kk4364 Posted April 24, 2020 Share Posted April 24, 2020 Lmfao!Sent from my SM-G975U using Tapatalk Link to comment Share on other sites More sharing options...
Glockster1 Posted April 24, 2020 Share Posted April 24, 2020 14 hours ago, Sarge said: Read the rule again. Thumb safety is primary safety on those guns. Primary safety can’t be disabled. Officials don’t check for that because they know better I recall the rules saying the factory firearm safeties can't be disabled. That would include the grip safety. Link to comment Share on other sites More sharing options...
forty5cal1911 Posted April 24, 2020 Share Posted April 24, 2020 1 minute ago, Glockster1 said: I recall the rules saying the factory firearm safeties can't be disabled. That would include the grip safety. 8.1.2.6 When applicable, the grip safety may be disabled provided that the primary safety as described in 8.1.2.5 is operable. Production and Carry Optics division handguns are explicitly excluded from this rule (See Appendices D4 and D7, item 22.1). Link to comment Share on other sites More sharing options...
kk4364 Posted April 24, 2020 Share Posted April 24, 2020 Every 2011 i have owned, have had the grip safety pinned. That being said 1 nationals, and several state comps, non issue. Sent from my SM-G975U using Tapatalk Link to comment Share on other sites More sharing options...
kk4364 Posted April 24, 2020 Share Posted April 24, 2020 Just make sure your thumb safety works. Sent from my SM-G975U using Tapatalk Link to comment Share on other sites More sharing options...
Glockster1 Posted April 25, 2020 Share Posted April 25, 2020 7 hours ago, forty5cal1911 said: 8.1.2.6 When applicable, the grip safety may be disabled provided that the primary safety as described in 8.1.2.5 is operable. Production and Carry Optics division handguns are explicitly excluded from this rule (See Appendices D4 and D7, item 22.1). That must be something newer and updated. Link to comment Share on other sites More sharing options...
Joe4d Posted April 25, 2020 Share Posted April 25, 2020 Grip safety has NOTHING to do with this thread or the original question Link to comment Share on other sites More sharing options...
shred Posted April 25, 2020 Share Posted April 25, 2020 21 minutes ago, Glockster1 said: That must be something newer and updated. Well, the text changed, but USPSA and IPSC rules have said only the "primary" safety on a pistol has to be working for a very long time. I just checked the 2001 rulebook (where it was rule 5.2.5) You may be thinking of IDPA. Link to comment Share on other sites More sharing options...
Glockster1 Posted April 25, 2020 Share Posted April 25, 2020 (edited) Ok well that's good to know thanks. I have always used pinned grip safeties anyways. But like I said before, no match official has ever checked a gun safety mechanism that I've ever seen or even heard of IRL at a range. They only do chrono ammo checks. Edited April 25, 2020 by Glockster1 Link to comment Share on other sites More sharing options...
HIREDgun45 Posted April 25, 2020 Share Posted April 25, 2020 If you plan to fit it yourself I recommend the 10-8 Armor's Block. There is a place on it to insert the thumb safety and hold it in a nice position to file the pad. https://www.10-8performance.com/armorer-block/#description Hope this helps Link to comment Share on other sites More sharing options...
Nolan Posted April 25, 2020 Share Posted April 25, 2020 18 hours ago, Glockster1 said: Ok well that's good to know thanks. I have always used pinned grip safeties anyways. But like I said before, no match official has ever checked a gun safety mechanism that I've ever seen or even heard of IRL at a range. They only do chrono ammo checks. So even though you thought the grip safety was required you had a pinned grip safety? OKAY, rules are only for other people. They check the safeties at Chrono, you just haven't noticed. Before loading the gun, cock the hammer, safety on, pull the trigger, safety off, then pull the trigger again, it takes about 1 second to do. Same with the Grock, rack the slide, finger on side of trigger, safety lever not depressed, pull the trigger, depress safety lever, pull the trigger again. Both methods check if the safety works, whether the hammer drops when the safety is dis-engaged, and lets the Chronoman know if he's going need both hands to pull the trigger or if he can just think about it and the gun will fire. Nolan Link to comment Share on other sites More sharing options...
Glockster1 Posted April 25, 2020 Share Posted April 25, 2020 42 minutes ago, Nolan said: So even though you thought the grip safety was required you had a pinned grip safety? OKAY, rules are only for other people. They check the safeties at Chrono, you just haven't noticed. Before loading the gun, cock the hammer, safety on, pull the trigger, safety off, then pull the trigger again, it takes about 1 second to do. Same with the Grock, rack the slide, finger on side of trigger, safety lever not depressed, pull the trigger, depress safety lever, pull the trigger again. Both methods check if the safety works, whether the hammer drops when the safety is dis-engaged, and lets the Chronoman know if he's going need both hands to pull the trigger or if he can just think about it and the gun will fire. Nolan I know many people I shoot with that have pinned grip safeties. None of us cared since no one checked. Where I've been they only check chrono. Or if you have n obvious holster placement or gun class issue, they'll ask you to change it. Ok now that's the third and last time I'm saying this. Link to comment Share on other sites More sharing options...
HOGRIDER Posted April 26, 2020 Share Posted April 26, 2020 On 4/23/2020 at 8:37 PM, muncie21 said: I have an older SVI 2011 that I installed the SV single sided-wide safety on and really enjoyed the angle and feel. Sooo... I says to myself, why not buy one to install on my Limited STI . It only took about 5 seconds to figure out that something was wrong after I installed it. Trigger didn't feel right and the hammer would only drop to half-cock. When I compared the STI safety to the SVI one, I noticed major differences in the action/contour. So my question for the group- Is this an issue of minor fitting? Or are SV safeties not designed to fit into STI frames and I'm basically screwed? I feel confident the SVI safety is like most other premium safeties as they are a bit over-sized and require experienced fitting; usually by a qualified gunsmith. Remember, this is your primary safety and must pass all safety function tests! If your determined to try fitting this yourself, then this .pdf contains some excellent instructional information! https://shop.harrisoncustom.com/images/uploaded/pdf/Extreme Service Thumb Safety_June 2016.pdf Link to comment Share on other sites More sharing options...
muncie21 Posted April 26, 2020 Author Share Posted April 26, 2020 Thanks everyone for the suggestions, tips and videos. This wide safety was a 'drop in' for my SV pistol, so I was thinking there might be something wrong when it didn't fit correctly in my STIs. I'm going to read/follow the posted tips and get this thing fitted this coming week. I'll drop a note to let folks know how things end up. Thanks again! Link to comment Share on other sites More sharing options...
muncie21 Posted April 27, 2020 Author Share Posted April 27, 2020 (edited) It took a few strokes of the file (blue area) to get the safety to engage fully. However when I pull the trigger the hammer stops at 'half cock'. Looking at the two safeties I noticed the SV has a lot more material in the area marked in red. I suspect this is where I need to file next. Going to do some more research and if I still have questions, I'll post them in the gun smith portion of this site. Edited April 27, 2020 by muncie21 Link to comment Share on other sites More sharing options...
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