American Defense ADM4 16" 5.56 NATO 1:8 Mid-Length MOD 1 LE AR-15 Rifle - 13.5" M-LOK Handguard



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American Defense Manufacturing LLC was founded with an idea and a lot of hard work. All ADM products are designed and built with U.S. sourced material in New Berlin, Wisconsin.

The Universal Improved Carbine ADM4 MOD 1 LE is a gas-powered semi-automatic AR-15 rifle built around a 7075 aluminum billet receiver set. The MOD 1 features ambidextrous controls, an enlarged bolt release, flared mag well, ambidextrous charging handle, and Magpul MBUS sights. The barrel is chambered in 5.56 NATO and takes advantage of a soft shooting mid-length gas system, 1:8 twist rate, and A2 flash hider.

The 13.5” handguard provides a monolithic Picatinny top rail and M-LOK slots on 7 sides for maximum mounting flexibility of optics, lights, and accessories.

  • Chambered in 5.56 NATO with a 1:8 twist rate
  • 4150 chrome moly vanadium steel barrel
  • Mid-length gas system
  • A2 flash hider
  • ADM MIL-SPEC Enhanced BCG with a Nitride QPQ finish
  • 7075 billet aluminum receivers
  • Hardcoat anodized
  • 13.5” M-LOK Handguard
  • Magpul MBUS sights
  • ADM HD Buffer
  • Ambidextrous charging handle
  • Weight: 6.2 lbs
  • Made in the U.S.A.


Barrel CoatingSalt Bath Nitride
Barrel ContourGovernment
Barrel Length16
Barrel LiningSalt Bath Nitride
Barrel Material4150 Chrome Moly Steel
BrandAmerican Defense
Caliber Gauge5.56 NATO
Gas System LengthMid-Length
Gas System TypeDirect Impingement
Handguard13.5 in M-LOK Rail
Muzzle DeviceA2 Flash Hider
Thread Pattern1/2 X 28
Twist Rate1:8
Weight6.2 lbs

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