CSRG Multi-Platform Magazine Competition Follower & Spring Kit

CSRG kit includes the following:

CSRG Multi-Platform Competition Follower made from durable nylon
CSRG Competition Spring (made by ISMI)
- Options available for 11 or 13 coils
- 13 coils will improve reliability and longevity, but may result in slightly reduced capacity compared to the 11 coils
Competition follower does NOT lock the slide open after firing the last round
23/24/25+1 capacity when used with 140mm magazine extensions and full-size factory magazine tubes
We recommend using a loading tool such as an UpLULA to achieve best results, and to fully load and unload the magazine a minimum of three times to set the spring.

We have tested the followers in the following firearms (full-size magazines with 140mm magazine extensions):

Beretta PX4 Storm (24/25+1 with Springer Precision 140mm basepad, 22+1 with Beretta factory 20 round magazine; metal floorplate must be removed)
Beretta 92
Girsan Regard
Springfield Echelon
SIG P320
Glock 17/19/45/47 (not compatible with Magpul or Mecgar magazines)
Stealth Arms Platypus
CZ Shadow 2
Jericho 941
Tanfoglio Stock 2
Walther PDP
Walther PDP SF
Smith & Wesson M&P9 2.0
CZ Czechmate
CZ Tactical Sport
SIG P226
Grand Power X-Calibur