This is our custom built AR-15 Flat top Upper Assembly with Adams Arms Gas Piston. This is the "cadillac" upper we call the SuperNova 204. 20 inch Bead Blasted Lilja Stainless Steel Barrel chambered in 204 Ruger 1-12 Twist! Daniel Defense Lite Rail 12 Inch Forearm Rail. Mil-spec upper receiver with M4 Feedramps and Lasered T-Markings with Totally Free Floated Barrel with Daniel Defense Free Float Hand-guard. We double check head-space and test fire after assembly. This barrel will stabilize all 204 bullert upto 32 grains and most 40 grain bullets. Lilja barrels are the among the Best in the Business!

DOES include an Adams Arms 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.
 

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 is extremely strong and comfortable. Comes with three rail covers to protect your hands. 

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 12" twist 20” Hand lapped barrel with target crown
Daniel Defense Rifle Length Free Float forearm
Adams Arms carrier machined one piece with operating Lug - with bolt

Feel free to ask all the question you have. We take the time to answer them all! We have the best customer service bar none!

This item is in stock unless stated otherwise. If this is what you are looking for except you wish for a item or two to be different, then email or call us! We are custom builders, we will guide you though the process, we will advise you on what works and what does not. No question is stupid! (Except the one that isn't asked!)