This is our custom built AR-15 M4 Flat top Upper Assembly with Adams Arms Gas Piston. This is the "cadillac" upper we call the SuperNova. 16 inch Lilja Stainless Steel Barrel chambered in .223 Wylde 1-8 Twist! Total Free Floated Barrel with Daniel Defense Lite Rail 9.5 Inch Mid Rail. Yankee Hill Mil-spec Upper receiver with Daniel Defense Free Float Hand-guard. We double check head-space and test fire after assembly. This barrel will stabilize all .223 or 5.56 bullets. Lilja barrels are the among the Best in the Business!

DOES include Les Baer Chrome National Match bolt and carrier.

Tactical charging handle makes loading with a scope easier.

Absolutely no modifications required to lower. Uses the same mags as any 223/5.56. Will mate to any quality Mil-spec lower except some Colts with the Large diameter take-down pins. We do stock the adapter pins for these Colts.

Yankee Hill Mil spec Receiver: 7075, T6 aluminum, flattop rail, accepts Weaver-style rings and your tactical accessories. Finished with mil-spec, hard-coat, black anodizing for protection from scratches, mars, and abrasion.

Adams Arms Gas piston system. We have tested several other gas piston systems and have settled in the Adams arms for dependability and ease of cleaning. Has positions for full piston charge, reduced piston charge for suppressors and no piston charge for single shot firing. The Daniel Defense Free Float Lite Rail extends under the gas piston block for a truly custom look and feel. Comes with three rail covers to protect your hands. Barrel has a Yankee Hill Recoil Compensator for reduced muzzle rise. This is one sweet silky smooth upper assembly! It is truly impressive.

We are a FFL licensed manufacturer, but this upper can be shipped to an individual – no need to transfer through FFL. You are responsible to know the laws in your area!

Flattop upper with Forward Assist and Port Cover
Lilja Stainless Steel 1 in 8" twist 16” Hand lapped barrel
Yankee Hill Tactical Compensator
Daniel Defense Mid Length Free Float forearm
Les Baer National Match Chrome carrier assembly with Chrome bolt

Feel free to ask all the question you have. We take the time to answer them all!