HK416 / MR556 Series
Our extensive collection boasts a wide array of HK MR556 and HK 416 parts, including precision HK MR556 Barrels and durable HK 416 Stocks. Elevate your rifle's functionality with HK 416 Handguards and HK MR556 Triggers, designed for the discerning shooter seeking top-tier performance.
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QD Offset Adapter 4mm Compatible with Surefire G2
B&T Brugger & Thomet
$28.95B&T QD Offset Adapter 4mm compatible with Surefire G2Secure your Surefire G2 weapon light to any Picatinny rail section on your firearm with this quick detach, light-weight mount from B&T. Compatible with: All firearms equipped with a Picatinny...HKP-99445$28.95 -
On Sale
HK416 Compensator Flash Hider - Threaded 1/2x28 - BLEMISHED
H&K Heckler & Koch
Now: $29.95Was: $39.95HK Heckler and Koch Compensator Flash Hider - Threaded 1/2x28 - BLEMISHED for HK416 5.56/.223 COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Threaded...HKP-16926-BNow: $29.95Was: $39.95 -
On Sale
HK416, HK417, MR556, MR762 German E1 Convex Butt Pad - USED
H&K Heckler & Koch
Now: $47.95Was: $64.95HK416, HK417, MR556, MR762 German E1 Convex Butt Pad - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HK Convex buttpad can be used to swap out on the...HKP-01915-USEDNow: $47.95Was: $64.95 -
On Sale
HK Ambidextrous Sling - Green - USED
H&K Heckler & Koch
Now: $93.95Was: $149.95HK Ambidextrous Sling - Green - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. This sling is the factory HK Green 1.25" Ambi Sling with dual HK sling hooks...HKP-00183-USEDNow: $93.95Was: $149.95 -
HK MP5, MP5K, HK416, MR556 Flash Hider - 1/2x28 - Taper Mount
JMAC Customs
$116.951/2x28 - Plan B Taper Mount Flash Hider for MP5, HK416, MR556, APC223 The 360HD is the latest evolution in JMac Custom's Recoil Reduction Device (RRD) family of muzzle brakes, designed to meet the needs of serious shooters and...HKP-22408$116.95 -
HK416, MR556 Handguard - 12.5" - M-LOK - FDE
H&K Heckler & Koch
$429.95H&K HK MR556/HK416 12.5" M-LOK Compatible Handguard Manufactured by HK from aircraft grade aluminum with a hard coat anodized finish, this M-LOK handguard is designed for the Heckler & Koch MR556 & HK 416 rifles chambered in 5.56x45mm and ...HKP-99323$429.95 -
On Sale
HK416, MR556 9" Modular Rail System - Black - BLEMISHED
H&K Heckler & Koch
Now: $286.95Was: $399.95H&K HK MR556/416 9" Modular Rail System - Black - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK German...HKP-17341-BNow: $286.95Was: $399.95 -
HK MR556 A4 Gas Block- Incomplete
H&K Heckler & Koch
$187.00H&K HK MR556 A4 Gas Block - Incomplete The H&K HK MR556 A4 Gas Block is a high-quality, precision-machined component designed for the MR556 A4 rifle. It houses the gas system that directs gas from the barrel to cycle the action. Compatible...HKP-22087$187.00 -
HK416 Handguard - 9" - Strike Industries GRIDLOK - Full Duty
Strike Industries
$318.95Strike Industries HK 416 - 9" Handguard - Gridlok Full Duty The Strike Industries GRIDLOK® Rail for 416 gives you a primary, a secondary or multiple setup options as a quick and direct handguard swap. The GRIDLOK® Rail for 416 has the SI patent...HKP-21312$318.95 -
Out Of Stock
HK416 E1 Collapsible Buttstock - Mil Spec - RAL7008
H&K Heckler & Koch
$0.00Collapsible HK 416 E1 Style Mil Spec - HK 416 RAL 7008 - Dark Earth Color Genuine Heckler & Koch HK416 surplus buttstocks in the RAL 7008 color scheme. HK-USA nows offers these surplus E1 Mil-Spec stocks which can be hard to find and are perfect for...HKP-19503$0.00 -
Out Of Stock
HK417, MR556, MR762 Trigger Guard - A5 Style - RAL8000
HKP HK Parts
$39.95HKP HK 416 A5 Style Trigger Guard - MR556/416/MR762/417 - RAL 8K Compatible With: MR556 & 416 MR762 & 417HKP-17832$39.95 -
HK416, MR556 Quad Rail - Short - KeyMod
HKP HK Parts
$199.95MR556/416 KeyMod Quad Rail - ShortHKP-17985$199.95