What causes premature slide lock-back?

Oleg Volk · July 27, 2000, 11:10 PM

I have a Kahr P9 that locks the slide back often (10%-50% of the time, depending on the ammo) with both magazines. Any ideas on fixing that?

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Oleg "peacemonger" Volk

http://dd-b.net/RKBA

George Stringer · July 28, 2000, 08:13 AM

Oleg, there are usually 2 reasons for this. Either the bullet nose is coming into contact with the slide lock or the inertia of the recoil is causing it to engage. If it's the first, the fix is to relieve the inside part of the stop until the bullet nose no longer touches it. This area will be evident by brass or copper colored marks on the stop. If it is being caused by inertia, a detent needs to be cut into the end of the stop where it's plunger engages. George

Oleg Volk · July 28, 2000, 08:40 AM

Since I wouldn't know how to fix the gun (reason #2 sounds likely as ehavier bullets are more trouble), guess this P9 is going back to Kahr.

July 27, 2000, 11:10 PM	#1
Oleg Volk Staff Alumnus Join Date: December 6, 1999 Location: Nashville, TN Posts: 7,022	I have a Kahr P9 that locks the slide back often (10%-50% of the time, depending on the ammo) with both magazines. Any ideas on fixing that? ------------------ Oleg "peacemonger" Volk http://dd-b.net/RKBA

July 28, 2000, 08:13 AM	#2
George Stringer Staff Alumnus Join Date: October 12, 1998 Location: Earlington KY Posts: 2,299	Oleg, there are usually 2 reasons for this. Either the bullet nose is coming into contact with the slide lock or the inertia of the recoil is causing it to engage. If it's the first, the fix is to relieve the inside part of the stop until the bullet nose no longer touches it. This area will be evident by brass or copper colored marks on the stop. If it is being caused by inertia, a detent needs to be cut into the end of the stop where it's plunger engages. George

July 28, 2000, 08:40 AM	#3
Oleg Volk Staff Alumnus Join Date: December 6, 1999 Location: Nashville, TN Posts: 7,022	Since I wouldn't know how to fix the gun (reason #2 sounds likely as ehavier bullets are more trouble), guess this P9 is going back to Kahr.