Collection: ALL PRODUCTS
Explore the full Nefarious lineup — premium components, accessories, and hard-use parts built for performance, precision, and reliability.
- HK-platform parts and clone-correct components
- Barrels, receivers, gas blocks and small parts
- Tested fitment and verified compatibility
- Trusted by builders, armorers, and serious shooters
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M110 / MKII Gas Block
Regular price $325.00 USDRegular price -
M110 / MKII Gas Block Pin Kit
Regular price $50.00 USDRegular price -
NA5 - HK 416A5 Style Adjustable Gas Block
Regular price $375.00 USDRegular price -
Replacement Regulator Screw Kit for Nefarious Arms Adjustable Gas Block
Regular price $40.00 USDRegular price -
NA5 Replacement Gas Block Cap
Regular price $50.00 USDRegular price -
Enhanced Reliability Gas Piston
Regular price $75.00 USDRegular price -
HK416 / MR556 / G36 Complete Gas Piston #50205381
Regular price $50.00 USDRegular price -
HK416 PDW / G36C / G36K Complete Gas Piston, HK #50215865
Regular price $100.00 USDRegular price -
B&T M-LOK Handguard for HK416 / MR223 (11") - Black
Regular price $275.00 USDRegular price -
SR-25 / M110 Steel Barrel Nut
Regular price $75.00 USDRegular price -
Barrel Nut - HK416 A5
Regular price $40.00 USDRegular price -
AR15 Barrel, 14.5" RECCE, 5.56x45mm - Dimpled
Regular price From $575.00 USDRegular price -
Nefarious Arms HK416 Barrel, 9" PDW, 5.56x45mm NATO
Regular price $595.00 USDRegular price -
Nefarious Arms HK416 / MR556 Barrel, 10.4" LIGHT, 5.56x45mm NATO
Regular price $595.00 USDRegular price -
Nefarious Arms HK416 / MR556 Barrel, 10.4" HEAVY, 5.56x45mm NATO
Regular price $595.00 USDRegular price -
Nefarious Arms HK416 / MR556 Barrel, 11" LIGHT, 5.56x45mm NATO
Regular price $595.00 USDRegular price -
Nefarious Arms HK416 / MR556 Barrel, 11" HEAVY, 5.56x45mm NATO
Regular price $595.00 USDRegular price -
Nefarious Arms HK416 A5 / G38 Barrel, 11", 5.56x45mm NATO
Regular price $595.00 USDRegular price -
Nefarious Arms HK416 / MR556 Barrel, 12.5" LIGHT, 5.56x45mm NATO
Regular price $595.00 USDRegular price -
Nefarious Arms HK416 / MR556 Barrel, 14.5" LIGHT, 5.56x45mm NATO
Regular price $595.00 USDRegular price -
Nefarious Arms HK416 / MR556 Barrel, 14.5" SOCOM, 5.56x45mm NATO
Regular price $595.00 USDRegular price -
Nefarious Arms HK416 A5 / G95 Barrel, 14.5", 5.56x45mm NATO
Regular price $595.00 USDRegular price -
Nefarious Arms HK416 / MR556 Barrel, 16.5" M27 IAR, 5.56x45mm NATO
Regular price $595.00 USDRegular price -
HK416, MR556 Piston Rod, Complete Assembly
Regular price $110.00 USDRegular price -
HK416, MR556 PDW Piston Rod, Complete Assembly
Regular price $150.00 USDRegular price -
HK416 A5 Bayonet Lug | Genuine HK Factory Part #50237318
Regular price $75.00 USDRegular price -
HK Roll Pin, Bayonet Adaptor HK416 / A5 - Genuine HK #50928508
Regular price $10.00 USDRegular price -
HK 33mm Front Folding Sight – HK416 / HK417 / MR556 / MR762 | Genuine HK #235251
Regular price $180.00 USDRegular price -
HK 33mm Front Folding Sight – HK416 / HK417 / MR556 / MR762 | Genuine HK #235905
Regular price $150.00 USDRegular price -
HK416 A5 Front Sight Adaptor | Genuine HK Factory Part #50237319
Regular price $100.00 USDRegular price -
HK Roll Pin, Front Sight Base HK416 / A5 - Genuine HK #50975052
Regular price $10.00 USDRegular price -
HK416 Ejection Port Axle
Regular price $5.00 USDRegular price -
HK416 / MR556 20-Round Steel Magazine — 5.56mm | Genuine HK (Part #233609S)
Regular price $60.00 USDRegular price -
HK416 / MR556 30-Round Steel Magazine — 5.56mm | Genuine HK (Part #251770S)
Regular price $85.00 USDRegular price -
HK417 / MR762 20-Round Magazine — 7.62mm | Genuine HK (Part #234708S)
Regular price $55.00 USDRegular price -
Gas Tube, Carbine Length
Regular price $15.00 USDRegular price
