Featured Products SEE ALL FEATURED PRODUCTS HK G28/G28E B&T Factory 7.62 DMR Suppressor QD From: $2,19900 HK 11 Front End Section Demilled Cutoff Shroud & Trunnion $1,29900 Out of stock HK Style HKey Accessory Picatinny Rail Set Tan/RAL8000 Medium $9900 HK Style HKey Accessory Picatinny Rail Set Tan/RAL8000 Long $11900 Out of stock Sale! Original Hensoldt HK PSG1 Rifle Scope From: $4,00000 $3,49900 Sale! HK PSG1 Type Lower Group Complete $1,19900 $99900 Black Ops Defense LLC Logo Decal 3×3.25″ $300 HK 416A5 Style Adjustable Gas Block $54900 Sale! HK UMP Complete Parts Kit Trade-in/De-milled 45 40 10mm from: $2,00000$1,59900 Black Ops Defense Logo T-Shirt $1900 Out of stock Sale! Billet 416A5/MR223 Receiver by Black Ops Defense From: $99900 $89900 HK M110A1 417A2 Style Lower Modified Brownells Receiver $1,49900 Out of stock Sale! Billet 416 Receiver by Black Ops Defense $89900 $79900 PSG1/MSG90 Trunnion Extension Weldment $7900 New Products SEE ALL NEW PRODUCTS Out of stock HK Type PSG1 Trigger Shoe Kit $4900 HK 416F Style Ribbed 3 Prong Flash Hider Clone $6900 HK G3/91 EBO Greek Lower Housing 0 1 F For Semiauto $24900 Out of stock Sale! HK MR556 416D 416C 416A5 Short Barrel from: $1,00000$89900 HK Sling For UMP G36 SL8 USC Etc Open Bag $3500 HK Sling UMP G36 SL8 USC Etc Factory New $4900 Black Ops Defense LLC Logo Decal 3×3.25″ $300 Black Ops Defense Logo T-Shirt $1900 Out of stock HK 416 CAG Geissele Style Quad Rail Foregrip Handguard Tan $27900 HK M110A1 417A2 Style Lower Modified Brownells Receiver $1,49900 HK 416A5 Style Quad Rail Foregrip Handguard Black $27900 Out of stock HK 416A5 Style Quad Rail Foregrip Handguard Tan/RAL8000 $27900 Out of stock HK 416A5 Ambidextrous Mag Release $3900 Out of stock HK Style Tan Enlarged Trigger Guard 416A5 G28 M110 RAL8000 $2900 Need a Custom Build?Contact Us about Our Custom ServicesContact UsBrowse Our Services HK USC to UMP HK MP-5 HK SL8 to G36 HK PSG-1 B&T MP9/TP9 HK416 MR556 HK G28 M110A1 417 Need a Custom Build?Contact Us about Our Custom ServicesContact Us Login Register Login Password Forgot password? Remember me Login E-mail I agree that my submitted data is being collected and stored. For further details on handling user data, see our Privacy Policy Password Confirm Password Minimum 4 characters