Smith & Wesson M&P Full-Size +4 Magazine Extension by ZR Tactical

$42.00 - $63.00

No reviews yet Write a Review

Frequently Bought Together

Please choose options for all selected products

This Item: Smith & Wesson M&P Full-Size +4 Magazine Extension by ZR Tactical

$42.00 - $63.00

Choose Options

Color: *

Add Upgraded Spring & Follower: *

Product Description

Smith & Wesson M&P Full-Size +4 Magazine Extension by ZR Tactical

Compatible with 17rd M&P Competitor mags
Billet Aluminum with anodized finish
Retained with two ZRTS Bolt Catch Pins
Reuses factory mag spring
Bumps Capacity by 4!
Due to variations in machining, some guns may be overly tight and require significant force to engage the magazine until broken-in or modified.

CSRG Gen 2 Multi-Platform Magazine Competition Follower & Spring Kit

Our kit includes the following:

Gen 2 CSRG Multi-Platform Competition Follower made from durable nylon. The Gen 2 Multi-Platform Competition Follower features the following updates:
- Improved round stacking and feeding geometry
- Improved feed lip pressure
CSRG Competition Spring (made by ISMI)
Competition follower does NOT lock the slide open after firing the last round
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.

MBX "Ultra Max" Spring & Follower

*Note This Product will not lock slide back on last round fired

ATTENTION!
Before Inserting Magazine Into Firearm

New MBX competition follower & spring sets need to be loaded 4-6 times to capacity preventing follower popping out when new , insuring spring set and the follower sits down in tube when new, this avoids any slide contact and damange to spring and follower voiding warranty as the competition follower is NOT held down by the slide stop and has minimal surface area , the competition follower is designed once spring is set to sit 1/4-3/8 below top of feed lips thus avoiding damaging slide contact with follower once magazine is empty.