CZ 455 22LR +2 mag extensions

Aug 20, 2012
342
26
28
virginia
#1
Have a new website up and running to make things a little easier. Thanks for all of the positive feedback guys!

www.jklprecision.com


These allow for 12 rounds in the standard 10 round plastic magazine and still allow insertion into a closed bolt using the factory spring. Material is ABS for extra strength. These parts are made by additive manufacturing, small imperfections are to be expected.

Green - In stock
Blue - In stock
Orange - In stock
Red - In stock
Black - In stock
Tan - In stock
OD Green - In stock
Purple - In stock

IMG_20180722_172516 (1).jpg

Next to Stock 10 rd magazine
IMG_20180516_181228.jpg

installation video
 
Last edited:
Likes: 10xk9 and SLG

SLG

Gunny Sergeant
Sep 2, 2009
931
326
63
#13
Got mine in the mail today. Took one minute or so to bolt them on to two mags. One of the mags only ever held 9 rds, no matter what I did. Now they both hold 12:) Took them out to the range, no issues whatsoever. I didn't submit them for lab testing, so all I can say is the 48 rds I fired through them so far all did what they should. Adds a nice rounded aspect to the bottom of the mag, which before was, if not sharp, at least not soft.

They also fit on 5 rnd plastic mags, but if you have a standard mag release, they won't really work as is.

Good stuff, and highly recommended so far!
 

ZY100

Sergeant
Oct 13, 2007
235
34
28
VA
#17
Got mine...great all the way around. Shipped quick, simple to install, works 100% and gives a good area to grip on the mag.

Concur on the 5-round mag, it interferes with the CZ mag release--not sure on an extended release, but probably. I do really like how it gives just a nub to grab when using the 5-rounder. I image I will dremel some clearance, but possible design mod for future runs.

ZY

PS...spin up a batch for the Anschutz 22LR Magazine...you will be a hero!

https://www.anschutznorthamerica.com/22-17-mags.html
 
Aug 20, 2012
342
26
28
virginia
#27
Ordered orange, tan and od green and should be here Wednesday. It's from a different supplier so I want to make samples before I say they are good to go. I'll keep you guys posted.
 
Aug 20, 2012
342
26
28
virginia
#30
Here are the orange and the tan! Will take me about another day to print up some stock of each and then theyll be ready to ship out. Bottom pic is to show the tan against my precision traner and I threw an AI barrel in pale brown in the pick for reference too. It is a little in between but close to the brown on the cz trainer than the AI pb.


IMG_20180627_210038.jpg IMG_20180627_205438.jpg
 
Nov 23, 2017
252
113
43
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Chandler, AZ
#31
Here are the orange and the tan! Will take me about another day to print up some stock of each and then theyll be ready to ship out. Bottom pic is to show the tan against my precision traner and I threw an AI barrel in pale brown in the pick for reference too. It is a little in between but close to the brown on the cz trainer than the AI pb.


View attachment 6916719 View attachment 6916720
PM sent I will take 2 tan ones.

Looks great 👍🏻