HK MR556/416 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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KDG HK MR556 13.75" M-LOK Rail System - FDE
KDG Kinetic Development Group
$399.95Rail System - 13.75" - Brown - M-LOK - HK MR556 The New KDG HK 556 M-LOK rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big brother, the KDG HK 762 M-LOK Rail system. Like...HKP-19243$399.95 -
Out Of Stock
Kinetic Development Group Sidelok Aimpoint Micro Mount - HK logo
KDG Kinetic Development Group
$138.95Kinetic Development Group Sidelok Aimpoint Micro Mount - HK logo The Sidelok is a revolutionary new mounting system for optics. The patented cam system locks the mount down onto Picatinny without the need of tools, side levers, or huge knobs. The release...HKP-19065$138.95 -
On Sale
Magpul MOE Stock - Commercial Spec, AR15/M4 Carbines
Magpul
Now: $39.95Was: $54.95Magpul MOE (Magpul Original Equipment) Commercial-Spec Model for AR15/M4 Carbines Made in the USA, the MOE stock Commercial-Spec Model is a drop-in replacement buttstock for AR15/M4 carbines using commercial-spec-sized receiver extension tubes. The...HKP-10629Now: $39.95Was: $54.95 -
MFI (5.56/.223) G28 Style Flash Hider - Threaded 1/2x28
MFI
$79.95MFI (5.56/.223) G28 Style Flash Hider - Threaded 1/2x28 The G28 2nd Gen flash hider features the latest style and is threaded 1/2x28. Constructed from ordnance-grade steel, it is finished with a semi-matte, mil-spec black oxide coating for enhanced...HKP-17941$79.95 -
Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud
Ergo
$19.95Ergo 1 1/2" Harris Bipod Slide Mount With Sling Stud The ERGO 1.5" Bipod Slide Mount slides onto 1913 Picatinny rail, allowing shooters to mount a variety of rail accessories, including swivels or bipods. Features: Slides onto Picatinny rails and held...HKP-15737$19.95 -
Out Of Stock
H&K HK 416 Vented Gas Block for 14.5"/16" Barrels
H&K Heckler & Koch
$249.95HK German 416, MR556 14.5" & 16.5" & 20" Gas Block Complete This is the factory-correct gas block with the ambi sling attachment points, as well as the bayonet lug milled into the gas block. Perfect for those who want to swap the MR556 gas block...HKP-01544$249.95 -
HK 416, MR556 Roll Pin for Charging Handle - HKP
$7.95HK 416, MR556 Roll Pin for Charging Handle - HKP This is the shorter one that is used on the inside of the charging handle. There are two of these pins used per charging handle.HKP-16536$7.95 -
HKP HK 416 11.5" 5.56 Complete Upper Receiver Assembly
HKP HK Parts
$2,485.95HKP HK 416 11.5" 5.56 Complete Upper Kit Complete HKP 416 style complete upper assembly. This top-tier assembly seamlessly fits onto your mil-spec lower or a STS 416 lower, providing the perfect solution for those seeking an 11.5" 416 style upper without...HKP-21539$2,485.95 -
MI HK MR556/416 M-LOK Compatible 13.5" Carbine Handguard
MI Midwest Industries
$269.74MI HK MR556/416 M-LOK Compatible 13." Carbine Handguard Features: Made in the USA Simple installation, direct replacement for HK factory handguard Retains factory barrel nut Mil-spec top rail Seven sides of M-LOK compatible slots Lightweight, rugged...HKP-18437$269.74 -
Troy Industries Rear Battle Sight - Black
Troy Industries
$129.95Troy Industries Rear Battle Sight - Black Durability and dead-on accuracy have made the Troy Industries Folding Battle Sight one of the best choices for Special Ops and tactical users worldwide. Easy to install and deploy, with no levers or springs to...HKP-00032$129.95 -
B&T HK416, HK MR223 M-LOK Handguard (11") with Overgrip - Black
B&T Brugger & Thomet
$279.95B&T M-LOK Handguard OG for HK416/MR223 (11") with "Overgrip" Free-cut Top Rail B&T's one-piece 11-inch M-LOK handguard for the Heckler & Koch HK416 and civilian equivalent MR223 is an amazing improvement for the combat value of these rifles...HKP-20403$279.95 -
H&K HK 416/MR556 Commercial Factory German E2 Rear Stock - Black
H&K Heckler & Koch
$249.95HK 416, MR556 Factory German E2 Rear Stock - Commercial HK German Stock For All HK 416, MR556 Rifles The HKE2 Buttstock fits Commercial buffer tubes (receiver extensions) for M4/AR15 type weapons and has the concave style removable buttpad installed...HKP-18360$249.95 -
$19.95 -
Out Of Stock
H&K Scope Mount Ring Set - 1 Inch For 30mm Scope
H&K Heckler & Koch
$89.95H&K Scope Mount Ring Set - 1 Inch For 30mm Scope Each set includes one complete set of inserts for one complete setup (4 individual sides). This is a Genuine HK German part. Insert rings (1 inch) - HK 30mm claw mount not included.HKP-02474$89.95 -
H&K Universal Harris Bipod Adapter
H&K Heckler & Koch
$199.95HK Factory Harris Bipod Adapter - Low Profile This adapter is to attach the Harris bipod to any Picatinny rail. It is compatible with all Picatinny railed forearms or applications. A new HK German manufactured part made for the HK 416, MR556, HK417...HKP-01852$199.95 -
HKP (5.56/.223) Bore Cleaning Brush
HKP HK Parts
$1.95Bore Cleaning Brush For .223/556 This item is ideal to have on hand for cleaning the bore of the barrel. This item is highly recommended for cleaning.HKP-03331$1.95 -
$249.95 -
HKP HK MR556/416 Rear Sight Drum 14.5&" & 16" Barrel
HKP HK Parts
$29.95HKP HK MR556/416 Rear Sight Drum 14.5&" & 16" Barrel Made in the USA.HKP-17775$29.95 -
Out Of Stock
HKP HK MR556/416 SS Firing Pin
HKP HK Parts
$29.95Firing Pin For HK 416 & MR556 Firearm - USA Made from hardened stainless steel and comes new in the white. Compatible With: HK416 HK MR556 HK CR556 HK M27HKP-01756$29.95 -
SB Tactical SBM4 Pistol Stabilizing Brace
SB Tactical
$74.99SB Tactical SBM4 Pistol Stabilizing Brace The SBM4 is the evolution of the original SB15 Pistol Stabilizing Brace . . . thinner, lighter and with enhanced cheek weld ergonomics. Includes: Pistol stabilizing brace Adjustable nylon stabilizing...HKP-17903$74.99 -
Aimpoint Lower 1/3 Co-Witness T1 Mount
AIM
$13.95Aimpoint - T1 Mount - Lower 1/3 Co-Witness Features a machined recoil lug for consistent, repeatable mounting. Features: 6061 T6 aluminum Black anodized Machined recoil lug Compatible With: Aimpoint T1 / H1 Series opticsHKP-19335$13.95 -
Ergo KeyMod Hand Stop
Ergo
$51.95KeyMod Hand Stop/Barricade Stop in Black Aggressive textured front for enhanced traction on barricades and obstacles Features: Low profile base also functions as a comfortable hand stop Black anodized 6061-T6 aluminum Compatible With: All KeyMod style...HKP-17885$51.95 -
Ergo M-LOK Harris Bipod Mount
Ergo
$33.95M-LOK Harris Style Bipod Mount Features: Contoured to fit Harris-style bipods Black anodized 6061-T6 alum.HKP-17851$33.95 -
Geissele HK 416 10.5" M-LOK Handguard - DDC
Geissele
$468.95Geissele HK 416 10.5" M-LOK Handguard - DDC The super modular rail HK416 MK15 M-LOK was designed to replace the standard rail on an HK416 or MR556 weapon platform. The rail system utilizes the stock HK barrel nut, but incorporates the strength, rigidity...HKP-20225$468.95 -
H&K German Leather Sling - Well Used with No Loop
H&K Heckler & Koch
$39.80Original Surplus German HK Leather - Well Used with No Loop Pulled from German military G3 rifles. Last of the remaining units, get them before they are gone. Compatible With: HK91 G3 PTR91 & CETMEHK93 33 53HK94 MP5HK clones Other custom...HKP-20583$39.80 -
Out Of Stock
H&K HK 416, MR556, MR762 Battle Grip With Storage - FDE
H&K Heckler & Koch
$69.95H&K 416/417 & MR556/762 Battle Grip With Storage - FDE New HK German factory battle grip with a storage compartment in the bottom of the grip. Each grip will fit all AR-15/M-16 lower receivers as well. Superior fit & feel to any other grip on...HKP-19519$69.95 -
H&K HK MR556/416 Ejector Port Cover Pin
H&K Heckler & Koch
$14.95HK MR556 & 416 Ejector Port Cover PinHKP-02661$14.95 -
H&K HK MR556/416 Forward Assist Plunger Pin
H&K Heckler & Koch
$9.95H&K HK MR556/416 Forward Assist Plunger PinHKP-17542$9.95 -
H&K HK MR556/416 Front Sight Roll Pin
H&K Heckler & Koch
$4.95HK MR556 & 416 Front Sight Roll PinHKP-02659$4.95 -
H&K Universal Harris Bipod Adapter - RAL 8000
H&K Heckler & Koch
$199.95HK Factory Harris Bipod Adapter - Low Profile - RAL 8000 This adapter is used to attach the Harris bipod to any Picatinny rail. Fits all picatinny railed forearms or applications. Features the lowest profile of any bipod adapter we have encountered with...HKP-17750$199.95 -
HKP Single Point Leather Sling - Brown
HKP HK Parts
$49.95Single Point Leather Sling - Brown Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German...HKP-20161$49.95 -
HKP Single Point Leather Sling - OD Green
HKP HK Parts
$49.95Single Point Leather Sling - OD Green Our leather sling utilizes two HK style sling hooks to attach to a single mounting point. Designed to replicate the original, out of production, German HK offering. Each sling is handcrafted in the US by a German...HKP-20163$49.95 -
Kinetic Development Group Sidelok Modular Optic Mount - 30mm
$224.95Kinetic Development Group Sidelok Modular Optic Mount - 30mm The new KDG Modular Optic Mount is based off the proven Sidelok family of quick detach optic mounts and features the same user-friendly, tool-free design. KDG set out to design a Sidelok mount...HKP-19062$224.95 -
Nefarious Arms HK 416/MR556 14.5" A5 Barrel
Nefarious Arms
$694.95Nefarious Arms HK 416/MR556 14.5" A5 Barrel Each Nefarious Arms barrel is cold-hammer-forged and chrome-lined for years of accurate shooting. Grab this expertly crafted barrel for your next SBR or pistol build. Compatible With: HK 416 (A5,...HKP-21590$694.95 -
Geissele HK 416 10.5" M-LOK Handguard - Black
Geissele
$499.95Geissele HK 416 10.5" M-LOK Handguard - Black The super modular rail HK416 MK15 M-LOK was designed to replace the standard rail on an HK416 or MR556 weapon platform. The rail system utilizes the stock HK barrel nut, but incorporates the strength,...HKP-20327$499.95 -
Geissele HK 416 M-LOK 10.5" Handguard - Black
Geissele
$469.95HK416 Super Modular Rail MK15 M-LOK - Black - 10.5" The Super Modular Rail HK416 MK15 M-LOK was designed to replace the standard rail on an HK416 or MR556 weapon platform. The rail system utilizes the stock HK barrel nut, but incorporates the strength,...HKP-19990$469.95 -
GSG9 HK G36C (5.56/.223) 4 Prong Flash Hider - Threaded 15x1 RH
GSG9
$86.95GSG9 HK G36C (5.56/.223) 4 Prong Flash Hider - 15x1 RH Finest quality 4-prong flash hider that is threaded 15x1 right-hand twist (factory HK thread pitch). Perfect for the SL8, G36C, or other type of HK conversion. It also counts as one US-made part for...HKP-00631$86.95 -
H&K HK 416, HK MR556 Folding Front Sight For Hanguard
H&K Heckler & Koch
$134.95Folding Front Sight - German - HK 416, MR556 Handguards German HK built in folding front sight for the forearms/handguards.HKP-19462$134.95 -
H&K HK MR556/MR762/HK 416/417 Trigger
H&K Heckler & Koch
$189.95H&K HK MR556/MR762/HK 416/417 Trigger Made in Germany. Compatible With: HK MR556 HK MR762 HK 417 HK 416HKP-15210$189.95 -
Out Of Stock
HK Ambidextrous Sling - Green - USED
H&K Heckler & Koch
$89.95HK Ambidextrous Sling - Green - USED This sling is the factory (used) HK Green 1.25" Ambi Sling with dual HK sling hooks for use on either the left or right side of the weapon. Best used with the ambi sling pins as the option shown below. Can be used on...HKP-00183$89.95