Windham Weaponrys RP9 AR pistol in 450 Bushmaster features a laser-engraved caliber mark on the left upper receiver. The 9 melonite QPQ-finished barrel has a 1:24 twist with a .450 compensator and a 7 free-float handguard. The flattop receiver is forged from 7075 T6 aluminum with a black hardcoat anodized finish, features an aluminum Magpul enhanced trigger guard, and has polymer front and rear flip sights. This semi-automatic uses a gas impingement system. It is fitted with an SB Tactical pistol arm brace, Hogue beavertail pistol grip, and a 5-round magazine.
Specifications
| Type |
AR Pistol |
| Action |
Semi-Automatic |
| Caliber |
450 Bushmaster |
| Barrel length |
9″ |
| Capacity |
5+1 |
| Safety |
Lever |
| Grips |
Black Hogue Rubber |
| Sights |
Flip-Up Front and Rear |
| Weight |
5.8 lbs |
| Metal finish |
Black Hardcoat Anodized |
| Stock material |
Polymer |
| Oal |
26.25″ |
| Stock finish |
Black |
| Stock type |
Pistol Stabilizing Brace |
| Barrel length range |
9.00″ to 9.99″ |
| Weight range |
5.00 lbs to 5.99 lbs |
