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 HK PSG1 MSG90 Style/Clone Tripod $39900 Sale! HK MSG90 Factory Hard Case New Original From: $79900 $69900 Out of stock PSG1 Side Stiffening T-Rail Set German $19900 PSG1/MSG90 Trunnion Extension Weldment $7900