Home / Services HK 91 93 G3 33 53 90 / Factory HK Bipod HK21 HK21E View cart “HK Sling For UMP G36 SL8 USC Etc Open Bag” has been added to your cart. Factory HK Bipod HK21 HK21E$39900 SKU: 21EBP-1 Categories: MP5 & 90 Series, Services - HK PSG-1, Services HK 91 93 G3 33 53 90 Tags: HK21, HK21E Product ID: 5996 Factory HK bipod for the HK21 and 21E belt-fed machineguns New old stock Product is out of stock Estimated Re-stock date: November 8, 2021 Notify me when this product is back. Please enter a valid email! Subscribe Description Additional information Description Factory HK bipod for the HK21 and 21E belt-fed machineguns New old stock Additional information Weight 21 oz Dimensions 11 × 3 × 2 in Related products PSG1/MSG90 Trunnion Extension Weldment $7900 Out of stock HK SG1 Cheek Rest Stock for Single Rear Pin Receivers MP5 33 53 93 $19900 Out of stock Weldable Picatinny 1913 8″ Weldment Rail For HK MP5 Etc $5900 HK Sling For UMP G36 SL8 USC Etc Open Bag $3500