Sentry Hexmag AR-10/.308 Mag (20 rds)

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UPC: 085992200850
size: 4.00 W × 8.00 H × 1.00 L

AR-10/.308 SR-25 magazine designed for 7.62 x 51mm (.308 Winchester) caliber variations. Features the SENTRY HEXTURE™ pattern recognized by shooters for maximum grip and durability. The magazine features the SENTRY patented Tool-Less Design for fast and easy floorplate removal allowing field cleaning and HexID® color customization. Incorporates the industry’s most popular and functional accessories including Hexmag Grip Tape and SENTRY HexID Color Ammunition Identification System.


  • Calibers: 7.62 x 51mm (.308 Winchester) 
  • Rounds: 20
  • Construction: PolyHex2 Advanced Composite
  • Color: Black
  • Supports rounds up to 2.815 inches in overall length. Not compatible with Armalite "B" Series AR10 rifles.

Made in U.S.A

Lifetime Warranty


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5 based on 4 reviews. Leave a Review.
Excellent Quality
Written by Colby on 30th Apr 2020

I am a first time buyer to Hexmag and I had heard some good things from friends and coworkers so I decided to try it out on my Aero Precision 6.5 Creedmoor. I must say the fit is very snug and doesn’t jiggle around much and the spring tension is good; so far no issues with feeding. Aesthetics are also very nice with the hexagonal pattern. The pattern also has some utility for gripping purposes. I love how easy it is to break down and clean as well. Overall this is an excellent product and I would recommend to anyone. Thanks.

Written by Bill on 3rd Aug 2018


.308 mags
Written by Jason on 27th Dec 2017

I received what I ordered in a timely manner, they are what I expected; very well constructed. They disassemble & assemble easy. They all work consistent, all the same qualities as the ar-15 mags I ordered.

AR-10/.308 Magazines
Written by Tom B. on 3rd Aug 2017

All in all, I am very happy with the 10 magazines that I bought. The quality of manufacturing was consistent throughout my entire amount purchased. I have disassembled and reassembled each of the magazines and found no issues whatsoever. The form and function are exactly as expected. I also think that the color coding is a nice option.

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