18" 204 RUGER Upper Assembly for AR15 with 18" 204 RUGER Satern Medium Stainless Barrel, 15" Rail and Competition Muzzle Brake.

The 204 Ruger cartridge is very accurate and efficient, producing consistent 1/2 MOA groups at 100 yards due to its extremely high muzzle velocity. The advantage of the .204 Ruger is that it achieves this performance with low recoil and heat, making it an ideal varmint and target shooting round. 204 Ruger is compatible with all 223/556 components.

Specifications:

• Barrel: 18 inch 204 RUGER Medium 416R Stainless Barrel by Satern Barrels with 1x12 Twist, M4 Feed Ramps, and 5/8x24 Threads. The accuracy and precision of Satern barrels is surpassed by no one in the firearms industry.
• Upper: Mil-Spec Upper Receiver machined from 7075 T6 aluminum forging with forward assist and dust cover installed. Hard coat anodized MIL-STD 8625 Type 3 Class 2.
• Rail: 15" Narrow Profile Free Float Rail machined from 6061 T6 aluminum. Comfortable and light weight, with M-LOK or KEYMOD attachment points along the entire length at 3, 6, and 9 positions. Hard coat anodized MIL-STD 8625 Type 3 Class 2.
• Gas System: Rifle Length Gas System with 0.750" Low Profile Gas Block.
• Muzzle Device: Competition Muzzle Brake with crush washer.