the prefix is dpn. completely broken off,and she ran fine. i was told by a glock rep the guns will run on three rails for awhile but the other rear rail will go also do to the added stress placed on it because of the missing rail.
Yeah, I saw an E series run without a left rear rail for awhile but nobody knows how long it had been broken so we could only guess that it wasn’t that long. I know the E series had problems.
we had a bunch series but they were pulled and the frames replaced befor we had any issues.
So do you think your D series happened because of the shear amount of +P+ ran through it?
i would say yes. i beat the snot out of this gun. i can’t complain. hopefully i get a new gun and start over.
I’m curious. Did you ever shoot the gun with a light (or any type of weight) mounted on the frame?
Joe Mamma
joe,
yes i have,both surefire and insights m3 with all kinds of ammo with no issues at all.
Interesting. Thank you for the reply. I have a theory that shooting with a light or some type of weight attached to the frame rail increases the likelihood that a rear rail will break on Glocks.
I’m not trying to start an internet rumor by asking. I’m just trying to satisfy my curiosity.
Joe Mamma
joe,
you might be correct. in talking to a friend that works for glock he stated the the left rear rail is the most stresses rail on the gun do to the recoil impulses. for a lack of a tech. description the slide and barrel torque to the right under recoil putting more stress on the left side rails. it makes sense but that part of shooting and function of the weapons is waaaaaaaaaay above my pay grade, i’m just a shooter.
Quick description: the barrel is rifled. As the bullet spins with the rifling, the ubiquitous “equal and opposite reaction” is that the barrel torques clockwise (from the point of view of the shooter). This puts more stress on the left rails. It’s also why, for example, the left wing of a Beretta 90-series locking block is 99% likely to be the one that breaks when it reaches the end of its service life.
thanks todd,
i knew somebody would know more about it and better explain it than me.
Just mirroring what has already been said, but the info I have is that glocks were designed around 124 gr +P+ sub gun ammo.
The Glock was “designed around” NATO 9mm specification ammunition for a NATO signatory’s military. While the actual measurements and specifications are handled much differently than the SAAMI method, it’s essentially a 9mm +p round.
I’m not saying Glocks will detonate if you shoot +p+ ammunition through them, just that the original design parameter was based on a known pistol ammunition standard applicable to the target customer.