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

HX20-SR25-(BLK or FDE)
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AR-10/.308 SR-25 magazine designed for 7.62x51mm (.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
  • Supports rounds up to 2.815 inches in length. Not compatible with Armalite "B" Series AR10 rifles.

Made in U.S.A

Lifetime Warranty




  • 5
    Unexpectedly Great Product

    Posted by Tyler on 29th Jun 2021

    I ordered these during a sale because they were cheap. I did not think I was going to get a quality product due to price alone, but I was mistaken. The spring is quite stiff, but not so much that it is a pain to load all 20 rounds. The polymer these are made of feels of similar quality to another well-known competitor. The construction feels solid. I wouldn't feel badly about accidentally stepping on one as these are engineered quite well. The hex grips feel nice in hand and offer superior retention. The hard edges on the pattern allows for good control even when your hands are slippery. All in all, these are a great product made by a great company who stands behind their product. I just bought 5 more and can't wait to get them.

  • 5

    Posted by Unknown on 10th Nov 2020

    Great magazines!

  • 5
    AR 10 Hex Mags

    Posted by Justin Dennis on 19th Sep 2020

    These mags work great in my most recent Aero Precision AR 10 build... Magpul 25 round mags were sloppy in the magwell & continually failed to feed properly in my build... Your mags performed perfectly!

  • 4
    SR 25 mag

    Posted by Ronald Walsh on 19th Aug 2018

    Runs fine. I would like to see it with a 25 round capacity.