Glock 20 full size Gen 4: Can I shoot 357 sig from it?

[Buckeye 50]

The people at KKM said that all I needed was their conversion barrel and it would work fine with existing mags and their new .357 sig  barrel.  Has anyone done this?  Sounds a little iffy to me???

Thanks,

Pat

[4949shooter]

There are a few people over on Glocktalk who have done it with Lone Wolf conversion barrels. KKM shouldn't be any different.

[The_Shadow]

I use several conversions in my Glocks 20 & 29 the 357Sig is Lone Wolf as shot for the 29 has worked flawlessly!
The chamber is totally supported and tight...the cartridges work just fine from the magazines.

[Buckeye 50]

POINT OF CLARIFICATION:

It was EFK Firedragon, NOT KKM.

By the way - how do you rate both barrels (KKM vs. EFK Firedragon)?

Pat

[The_Shadow]

I haven't used either the KKM or the EFK.  Both have had real good reviews from what I had read over the years.  Many swear by the KKM's products.  The EFK, is said to be electro discharge etching for the rifling...   I have no experience personally so I'd be interested in your evaluation of its performance and case support! 

I have the Storm Lake barrels from 2007-08 chambered in 10mm and 40S&W for the G-29 and added the LWD 357Sig & 9x25Dillon in the stock lengths, all have served me quite well.

I have used Bar-Sto 40S&W and 9x25Dillon conversions in my S&W 1006 5" (no longer being made)

My Glock 20 sports a LWD 6" 9x25Dillon and it really brings this cartridge to its ballistic potential!

[s0nspark]

I have a KKM conversion barrel for .40cal that works like a champ in my Gen4 G20 ... nothing but a barrel swap required.  .357sig should be the same...

I have been _very_ impressed with KKM.

[Buckeye 50]

Thanks everyone.

Pat

[rainsdrops]

If you reload or have a friend that reloads, look into the 9x25 Dillion.   I shoot this fireball in one of my g29s