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HGM825 Springfield Echelon PDW Grip Module

HGM825 Springfield Echelon PDW Grip Module | 4.0 & 4.5 Compatible Chassis

Rating is 5.0 out of five stars based on 2 reviews
$360.00Price

Buy an HGM825 and get $15 off a stock!

No shroud.  No limits.

 

The HGM825 is a fully compatible Springfield Echelon PDW grip module engineered to fit the complete Echelon platform including 4.0 & 4.5 models, threaded barrels, ported configurations and common suppressed setups (up to 1.35" diameter).  Designed without a shroud, the HGM825 expands configuration flexibility while maintaining compact PDW control and full-size magazine compatibility.

 

SAVE $15 AT CHECKOUT WHEN YOU BUY AN HGM825 AND A STOCK!

Quantity
Expected to ship within 2 weeks.
    • KEY FEATURES

      HGM825

      • Drop-in PDW grip module for the Springfield Echelon COG
      • Full-platform compatibility: 4.0, 4.5, threaded, comped, ported, and typical suppressed setups
      • Ambidextrous integrated gas pedals
      • AIMR - Auto Indexing Mag Release for faster reloads
      • Aggressive Straight Jacket grip texture
      • Constructed from high strength nylon polymer
      • Made in the USA

      Charging Handle (Included)

      • Precision machined from 7075 Aluminum
      • Mil-Spec Type III hardcoat anodized black
    • DISCLAIMER

      • The HGM825 is not a firearm
      • The HGM825 will not work with the 4.0 15 round magazines.  You must use the full size 17 & 20 round magazines.
      • The HGM825 includes a spare magazine holder
      • The HGM825 does not include:
        • firearm
        • slide
        • barrel
        • COG
        • Rear mag release
        • Any aftermarket accessories pictured
      • 1913 rail sections for mounting a stock/brace and sight are sold seperately.  

      NOTICE

      Even though ALL firearm laws/restrictions are unconstitutional, please consult which local, state and federal NFA rules apply.  Heighth Defense does not offer legal advice.

      Unfortunately, we cannot ship to California, Connecticut, Delaware, D.C., Hawaii, Illinois, Maryland, Massachussetts, New Jersey, New York and Washington.

    • COMPATIBILITY NOTICE

      • Engineered to fit the entire Echelon lineup - 4.0, 4.5, threaded, comped, ported and most suppressed setups.
      • The HGM825 will not work with the 4.0 15 round magazines.  You must use the full size 17 & 20 round magazines.
    • CERAKOTE

      • Cerakote services require an additional 3-4 weeks of lead time.
      • For alternative colors or custom finishes, please contact us with your desired Cerakote color code (available here).

    Reviews

    Rated 5 out of 5 stars.
    Based on 2 reviews
    2 reviews

    • Oak Ridge CompanyDec 10, 2025
      Rated 5 out of 5 stars.
      Verified
      Flux Who?

      This thing is absolutely dope! I've got a 300blk PDW and a Stribog SP9A3S. This thing is easily my favorite of the 3. From concealability to deployment and even comfort. Love this thing. Fits my OCL Lithium9 like a glove and vanishes into a backpack like it's a Mac Book Air. It's just as light as one too!


    • MrCDec 28, 2025
      Rated 5 out of 5 stars.
      Verified
      This is so much fun!

      We had a spare Echelon as my wife had bought a comp version a few months back and this new chassis completely transformed it. This will probably be my new home defense gun as it is so good out to 20 yards. Keeping on target for follow up shots is effortless and so much lighter than our Ruger PCC. I highly recommend!

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    Summerville, SC

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