1 2

HK416 A5 Front Sight Adaptor | Genuine HK Factory Part #50237319

HK416 A5 Front Sight Adaptor | Genuine HK Factory Part #50237319

$100.00 USD
$100.00 USD
Sale Sold out
Shipping calculated at checkout.

Low stock: 1 left

Authentic. Reliable. German-engineered precision.

This genuine factory HK Front Sight Adaptor is made in Germany and built specifically for the HK416 A5. Perfect for factory-correct builds, repairs, or retrofits, this OEM part delivers the quality and fitment you expect from HK.

Key Features

  • Genuine HK Part #50237319 — factory original, made in Germany
  • OEM fit and finish — designed for the HK416 A5 platform
  • Factory correct for A5 builds — ideal for retrofits and maintenance
  • Compatible with factory-spec barrel assemblies
  • Installation by qualified armorer recommended

Complete your A5 build with factory precision.

View full details

Let customers speak for us

from 36 reviews
Brian Bell

Great part. Will install on my next build.

HK416 / MR556 / G36 Complete Gas Piston #50205381
HK416 / MR556 / G36 Complete Gas Piston #50205381
Brian Bell

Excellent service, fast shipping thank you!!

Nefarious Arms
Brian Bell

Excellent Quality, fast shipping what more could a man ask for. Thank you as always.

Barrel Nut - HK416 A5
Barrel Nut - HK416 A5
THANH D. LY

High quality and fast shipping

M110 / MKII Gas Block
M110 / MKII Gas Block
Anonymous

Quality is absolutely stellar. Nefarious arms nails it everytime

Barrel Nut - HK416 A5
Barrel Nut - HK416 A5
Anonymous

Quality is absolutely stellar. Nefarious arms nails it everytime

Enhanced Reliability Gas Piston
Enhanced Reliability Gas Piston
Zach Martin

Barrel is absolutely perfection. Knocked it out of the park

Nefarious Arms HK416 / MR556 Barrel, 10.4" HEAVY, 5.56x45mm NATO
Nefarious Arms HK416 / MR556 Barrel, 10.4" HEAVY, 5.56x45mm NATO
Zach Martin

Quality is absolutely stellar. Nefarious arms nails it everytime

Nefarious Arms
Anonymous

Quality is absolutely stellar. Nefarious arms nails it everytime

HK416 Ejection Port Axle
HK416 Ejection Port Axle
Anonymous

Quality is absolutely stellar. Nefarious arms nails it everytime

HK416, MR556 Piston Rod, Complete Assembly
HK416, MR556 Piston Rod, Complete Assembly
Dustin Villarreal

Helps immensely when pushing pins. Keeps everything stable and easy to work with. Keeps you from marring your barrels!

Gas Block Assembly Tool
Gas Block Assembly Tool
Dustin Villarreal

Gives me the confidence to work on my 416 platform gun without damaging anything. Works on multiple platforms as well.

Reaction Rod – Armorer’s Multi-Platform Upper Receiver Holding Tool
Reaction Rod – Armorer’s Multi-Platform Upper Receiver Holding Tool
Dustin Villarreal

Folding sight arrived in great shape. Works with my 33mm height rear just fine. A+

HK 33mm Front Folding Sight – HK416 / HK417 / MR556 / MR762 | Genuine HK #235251
HK 33mm Front Folding Sight – HK416 / HK417 / MR556 / MR762 | Genuine HK #235251
Dustin Villarreal

Awesome tool! Its well made, helps with working on yhe 416 platform specifically. Great finish too.

Multi-Tool
Multi-Tool
Tony L.

Same ol’ great NA quality we’ve all come to expect. Super cool threads!

Nefarious Arms T-Shirt
Nefarious Arms T-Shirt