Strike Industries SI Enhanced Magazine Plate (EMP) +2-Round Magazine Extension for MagPul PMAG 30 Polymer AR-15/M4/M4A1 Carbine/Rifle Magazine

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By David Crane
david (at) defensereview (dot) com

The following article is property of (DR) and is copyrighted material. If you are reading this article on another website other than, please email us the website address/URL (where the unauthorized DR article reprint is located) at defrev (at) gmail (dot) com. Thank you.

Photo(s) Credit: Strike Industries (SI)

July 22, 2014
Last updated on 7/23/14.

Speaking of tactical AR-15/M4/M4A1 Carbine/SBR (Short Barreled Rifle)/sub-carbine accessories, the extremely prolific Strike Industries (SI) just introduced a really nifty, good-looking +2-Round mag extension for the MagPul PMAG 30 polymer AR rifle mag called the SI Enhanced Magaine Plate, or “EMP” for short. The SI EMP’s visual aesthetic is commensurate and complementary to the PMAG’s, so much so that the EMP looks like it was developed in-house by MagPul Industries, even though it wasn’t, and is an aftermarket part. So, SI’s product-design team really nailed it.

The SI EMP is only for the MagPul PMAG 30 M2 MOE mag, but Strike Industries is currently developing a +5-round mag extension for the and MagPul PMAG M3 mag, which in DR’s opinion, is the way to go (+5 rounds). We found out about the SI +5-round mag extension in development for the PMAG, when we called Strike Industries to recommend that they develop a +5-round mag extension for MILSPEC aluminum USGI 30-rounders and the Lancer L5 AWM (Advanced Warfighter Magazine) polymer mags, which are currently DR’s favorite polymer mags, since they’re reliable, use wraparound spring-steel feed lips, and there are translucent variants, so you can see your ammo count.

As it turns out, SI is already working on the +5-round mag extension for MILSPEC USGI mags, and I was told by an SI rep that they’d be willing to look into the viability of developing a +5-round mag extension for the Lancer L5 AWM.

Oh, and you can buy three EMP’s at a time, if you’d like, with the convenient SI EMP 3-pack.

Check out the SI EMP demo video below:

The following information on the SI Ehanced Magazine Plate comes directly from the Strike Industries website:

Basic Info:
Item Model#: EMP / EMP3
Item Name: SI E.M.P
Category: Related product: N/A

List Price:

MBP (single pack) MSRP: $9.95 + $2 shipping

MBP3 (3pack) MSRP: $29.95 free shipping

UPC: Product Spec:
Length: 2 ¾”
Weight: .8oz
Materials: Polymer
Color: BLACK / FDE

Package includes:
– 1x SI Cobra Magazine Plate Extension

Description (Introduction of product):
The Strike Industries Extended Magazine Plate (E.M.P) design provides smoother, faster magazine reloading, and handling. It provides multiple functions to include additional 2 round capacity and a monopod feature for better stability on surface areas.

– Finger groove for enhanced grip and easy pull from mag-well and pouch.
– Plus 2 round capacity
– Monopod functionality”

Company Contact Info:

Strike Industries (SI)
P.O. Box 28137
Santa Ana, CA 92799
Email Contact Page:

© Copyright 2014 All rights reserved. This material may not be published, broadcast, rewritten or redistributed without receiving permission and providing proper credit and appropriate links.

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About David Crane

David Crane started publishing online in 2001. Since that time, governments, military organizations, Special Operators (i.e. professional trigger pullers), agencies, and civilian tactical shooters the world over have come to depend on Defense Review as the authoritative source of news and information on "the latest and greatest" in the field of military defense and tactical technology and hardware, including tactical firearms, ammunition, equipment, gear, and training.

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