American Defense AR-15 UIC Mod 2 SPR - 18"



In Stock

NOTE: Limit 1 per household. Quantities exceeding 1 will not allow checkout.

We are fully staffed and processing orders. Standard orders are shipping in approximately 2 business day. FFL orders take approximately 14-16 business days if you can provide us an actively receiving FFL location.


In Stock

Items that are regulated by the ATF have restrictions and requirements:
•Your entire order will ship only to a Federal Firearm License holder.
•Current processing time is approximately 14 to 16 days.
•NJ, NY and CA are not able to accept transfers at this time.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers. Due to Covid-19 many are no longer open
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to


The American Defense UIC Mod 2 SPR is a fully ambidextrous AR-15 rifle system designed for precision. The Universal Improved Carbine Mod 2 features a fully billet machined receiver set to ensure a tight fit between the upper and lower. The controls are truly ambidextrous with an integral bolt catch, magazine release, and safety selector on both sides allowing for a high degree of versatility and ergonomics. The lower receiver is fully decked out with an enlarged trigger guard, competition style beveled magazine well, two-stage match trigger, and Magpul MOE pistol grip. Additionally, the ADM lower comes with the Magpul PRS stock allowing for a wide range of customization to ensure a stable shooting platform.

  • Billet 7075-T6 upper and lower
  • Type 3 hardcoat Mil-Spec anodized
  • Fully ambidextrous integral controls
  • Competition style beveled magazine well
  • Enlarged trigger guard
  • Two-stage match grade trigger
  • Magpul PRS Gen3 stock with ADM HD buffer
  • Integral receiver tension screw
  • Criterion 18” hybrid contour .223 Wylde barrel
  • Stainless steel and Nitride finished
  • 15” lightweight free float M-LOK handguard
  • Rifle length gas system
  • Battlecomp 1.0 compensator
  • Magpul Pro BUIS and MOE pistol grip
  • Made in the United States

The American Defense SPR upper receiver features a Criterion 18” Hybrid contour barrel chambered in .223 Wylde with a 1:8 twist rate and rifle length gas system is perfect for shooting tiny groups in paper. It is machined from stainless steel and black Nitride finished inside and out for long term durability and accuracy. Attached to the end of the barrel is the Battlecomp 1.0 compensator to keep your muzzle flat for fast follow up shots. Protecting the gas system and your hands is the American Defense 15” free float handguard with M-LOK attachment slots and a continuous picatinny top rail. Attached on top of the rifle is a pair of Magpul Pro back up iron sights.

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.


Barrel CoatingSalt Bath Nitride
Barrel ContourADM Hybrid
Barrel Length18
Barrel LiningSalt Bath Nitride
Barrel MaterialStainless Steel
BrandAmerican Defense
Caliber Gauge.223 Wylde
Gas System LengthRifle
Gas System TypeDirect Impingement
Handguard15 in M-LOK Rail
Muzzle DeviceBattleComp 1.0
Thread Pattern1/2 X 28
Twist Rate1:8
Weight8.6 lbs.

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