PSG1 Buttstock Cheek Rest Adjustment Knob$7500 SKU: PSGKNB-1 Categories: MP5 & 90 Series, Services - HK PSG-1, Services HK 91 93 G3 33 53 90 Tags: MSG90, PSG1 Product ID: 7527 Knob only, made to order PSG1 Buttstock Cheek Rest Adjustment Knob quantity Add to cart Description Additional information Description Knob only, made to order Additional information Weight 10 oz Dimensions 2 × 2 × 2 in Related products Out of stock WAITLIST NOW PSG1 MSG90 Forward Assist Button/Plunger Factory HK $16900 Out of stock WAITLIST NOW MP5 4 Position Lower Grip Frame Housing Used $4900 Out of stock WAITLIST NOW HK91 G3 Threaded Barrel 18″ PTR .308 $13900 PSG1/MSG90 Trunnion Extension Weldment $7900