Del-Ton AR-15 Heavy Rifle Kit | 20-inch | 5.56 NATO

This Del-Ton AR-15 Heavy Rifle Kit provides a complete upper assembly and a lower parts kit for builders and gunsmiths assembling a rifle. The package features a 20-inch heavy-profile, chrome-moly-vanadium barrel with a 1:9 rate of twist and an A3 flat top forged upper. The kit is shipped headspaced and test fired; it does not include a lower receiver or magazines.

Product Specifications

• The action is Semi-Auto.
• The chamber is listed as .223 Rem / 5.56 NATO (5.56×45 mm).
• The barrel measures 20 inches and uses a heavy profile for sustained rigidity.
• The barrel material is Chrome Moly Vanadium.
• The barrel profile is Heavy Profile for improved heat handling and stability.
• The rate of twist is 1:9 to match a range of bullet weights.
• The muzzle is equipped with a threaded A2 flash hider.
• The barrel finish is MATTE BLACK.
• The rifle uses a STANDARD/RIFLE gas system.
• The bolt is a Carpenter 158 bolt, HPT/MPI tested.
• The carrier is a phosphated 8620 steel carrier with a chrome-lined interior and a chrome-lined carrier key attached with Grade 8 screws; the gas key is properly staked and sealed.
• The upper receiver is forged 7075 T6 aluminum in an A3 flat top configuration with hard coat anodize and M4 feed ramps.
• The handguards are standard (rifle) length aluminum with an aluminum delta ring and a single heat shield.
• The buttstock is a Standard A2 reinforced Zytel with a trapdoor assembly.
• The UPC is 848456000058.

Engineered with mil-spec components and a heavy 20-inch barrel, this Del-Ton rifle kit suits builders seeking stable, consistent performance for precision shooting and range training. Its combination of a chrome-moly-vanadium barrel, Carpenter 158 bolt, and a forged 7075 T6 upper provides a solid foundation for a durable, accurate AR-15 build.