Tap Tap to Zoom
FN America FN15 20 Inch Rifle Upper Assembly 36427 has been discontinued by FN America and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts, AR15 Upper Receivers yourself to try and find the perfect replacement for you!
ATTENTION! We currently do not ship this product to AK, CA, HI, IL, NY, WA, P.O. Boxes, and U.S. Territories. Please see our policies for more information.
Complete upper assembly includes, bolt carrier group and charging handle. Barrel cold hammer forged. Proprietary CrMoV barrel steel. Hard-chrome lines to mil-std 171. M4 feed ramps. High pressure tested. Magnetic particle inspected. Manganese phosphate finish. Chambered in 5.56x45mm. 1:7 RH twist. Bolt carrier group/ bolt. M16 auto bold carrier assembly. Carpenter 158 bolt ( magnetic particle inspected). Staked gas key.![]()
| Mfg Item Num: | Â 36427 |
| Type: | Â ACCESSORIES - GUN ACCESSORIES - UPPER RECEIVERS |
| Barrel Length: | Â 20 |
| Model Header: | Â 20 Inch Rifle Upper |
| Master Model Header: | Â Upper Assembles |