How do those things improve accuracy?
I think Glock would have put a thicker slide lock in, if it did any good.
They are supposed to improve accuracy by keeping lockup more consistent. It is not hard to understand that even the tiniest fraction of a degree change in lockup could change bullet impact when distances are over 15 yards. The Glock piece (and gun in general) is designed with looseness of fit and absolute reliability in mind. The little cut in the slide lock (where the front lug on the barrel engages) is oversized to make sure the gun always returns to battery. The T.R. Graham piece has a smaller cut, so the barrel lug fits precisely.
For example, imagine that you are trying to slide a 9mm round into a barrel with your hand. The Glock slide lock has plenty of space around it, so it would be similar to sliding that 9mm round into a .45ACP chamber. There's plenty of space, so the 9mm round just slides right in. Even if alignment is off, or if you were going really fast, since the hole is much bigger than the round, it is easy to hit the hole. However, you also see that the round would just flop around in the chamber, and allow all kinds of movement, or slop. Now, pretend you are trying to push that same 9mm round into a 9mm chamber. This time, the fit will be perfect. There will not be slop. Once the round is in the chamber, it is secure.
The T.R. Graham slide lock is similar. It holds the barrel more securely since it is a tighter fit. If you take your Glock, and press down on the barrel hood, you can make the barrel drop down a bit. This should not happen with the MGSL. It will hold the barrel in the same position time after time. So, it will not improve single shot accuracy that much, but it should provide a worthwhile improvement in grouping. Single shot accuracy is more a function of the sights and shooter. Grouping is more closely tied to the gun. The more consistent the lockup of the gun, the better the grouping should be. Of course, this assumes the shooter is good enough to take advantage of such lockup consistency.
My only worry is a possible reliability concern. I have never heard anyone say anything negative about the MGSL, but I wonder if it could cause an out of battery situation. Applying the same logic as in the example above, it could be possible for the barrel lug to not fully engage the lock. If that happened, the gun could be left very slightly out of battery, but possibly close enough to still fire. That could be very bad if you were firing hot rounds, and the case was not fully supported (due to the out of battery condition). Realize that this is all conjecture, and I have never heard of any such thing happening. I have heard that you need to break the thing in. I think it's for this very reason. You need to smooth it out enough so that it is totally reliable.
I will report back when I test mine.
Ya I sure did man! Thanks for getting back to me, Ill be in touch. I just bought a lonewolf 10mm stock length barrel from bobadebt so I should probably wait for my next payday...:whistling:
I understand that. Just let me know when you're ready, and I'll make you a trigger bar.