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The Griffin Armament's MK1 PSD AR-15 Series represents a fully-featured carbine worthy of use as your primary carbine out of the box. Built as a system with each component working in harmony to create an incredibly soft-shooting platform suppressed or unsuppressed, while maintaining Mil-Spec tolerances for compatibility with other Mil-Spec parts on the market. The MK1 PSD features a pistol-length gas system; suppressor optimized buffer system; Griffin's Anti-Rotation LOW-PRO Rails provide for accessories such as lights and lasers, these rails have a tab that interfaces with the upper to prevent rotation of the rail under torque.
| Handguards: | M-LOK |
| Grooves: | 5 |
| Thread Pattern: | 5/8"x24 |
| Caliber: | 300 Blackout |
| Stock Finish: | Black |
| Receiver Finish: | Terra Brown Anodized |
| Series: | PSD |
| Weight: | 6 lbs |
| Twist: | 1:7" |
| Stock Material: | Polymer |
| Action: | Semi-Auto |
| Barrel Length Range: | 9" to 9.99" |
| Weight Range: | 6 lbs to 6.99 lbs |
| Capacity: | 30+1 |
| Barrel Finish: | Black Nitride |
| Receiver Material: | Aluminum |
| Sights: | None |
| Grips: | Black A3 |
| Barrel Material: | Stainless Steel |
| Barrel Length: | 9.50" |
| Model: | MK1 |
| Stock Description: | SBA3 Brace |
| Gun Platform: | AR Style |
| Barrel Description: | Threaded |
| Safety: | Selector Switch |
| Max Capacity: | 30 |
| Receiver Description: | Picatinny Rail |