[Ironwolf]

Were the P-11 and the P-40 the same size magazine and interchangeable? I ask as I noticed P-40 markings on a mag I've had for years that I thought was for my p-11. Can't remember ever shooting with it.

 

[RAT76]

The P40 & P11 12 rounder are identical except for the witness holes & maybe a little tiny bit wider between the feed lips on the 40 mag. The P11 10 rounder has a different spring & follower to limit the capacity.

My P11 with the P40 conversion kit ran with all 3 mag types no issues.

 

[Ironwolf]

The P40 & P11 12 rounder are identical except for the witness holes & maybe a little tiny bit wider between the feed lips on the 40 mag. The P11 10 rounder has a different spring & follower to limit the capacity.

My P11 with the P40 conversion kit ran with all 3 mag types no issues.

Thanks for the info. Will checkout my local up coming gun shows to KelTec magazines.

 

[Ironwolf]

Came across these today while cleaning. Interesting how it definitely listed as for the P11 but the mag is labeled P40.

 

[buzzsaw]

The original P-40 magazines were actually P-11 magazines, since at first the "P-40" was just an optional slide and barrel assembly for a P-11. Later the P-40 came out as a model of gun in its own right, with its own magazines. The first dedicated P-40 magazines had feed lips that were the same distance apart as those for a P-11, but had a "cutout" on the front of the feed lips and a different follower and spring to hold 9 rounds of .40 S&W. (They still worked just fine with 9 mm, and held 12 rounds.) Later, the distance between the feed lips was increased, presumably to improve feeding. There were a couple of other minor changes along the way.

That light kit is a fairly rare item. I wouldn't get rid of it.

buzzsaw

 

[Ironwolf]

The original P-40 magazines were actually P-11 magazines, since at first the "P-40" was just an optional slide and barrel assembly for a P-11. Later the P-40 came out as a model of gun in its own right, with its own magazines. The first dedicated P-40 magazines had feed lips that were the same distance apart as those for a P-11, but had a "cutout" on the front of the feed lips and a different follower and spring to hold 9 rounds of .40 S&W. (They still worked just fine with 9 mm, and held 12 rounds.) Later, the distance between the feed lips was increased, presumably to improve feeding. There were a couple of other minor changes along the way.

That light kit is a fairly rare item. I wouldn't get rid of it.

buzzsaw

I will definitely keep it.

 

[Ender]

Came across these today while cleaning. Interesting how it definitely listed as for the P11 but the mag is labeled P40.
View attachment 57725

They went through all that trouble instead of just making a railed version of the grip frame they sold for what, $30?

 

[matticus1631]

Went threw some old boxes in my gun room and found a p11 extended Promag any interest let me know

 

[Ironwolf]

At the local gun show today I came across a seller that had a few used keltec mags but he wanted $36. I passed as I purchased a new 12rd mag last week for $27

 

[Ironwolf]

Found some new old stock.