HK416 / MR556 / G36 Complete Gas Piston #50205381
HK416 / MR556 / G36 Complete Gas Piston #50205381
12 in stock
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Genuine HK quality for compact and full-length builds.
The HK416 / MR556 / G36 Complete Gas Piston is a genuine Heckler & Koch OEM unit, made in Germany and supplied as a fully assembled piston. Engineered and finished to HK tolerances, it maintains correct gas timing for G36-spec systems and HK builds that require a G36 piston. Ships ready to install.
Key Features:
- Genuine Heckler & Koch OEM part #50205381
- Made in Germany
- Complete, ready-to-install piston assembly
- Precision-machined and heat-treated for durability
- Maintains correct gas timing
Compatible with:
- HK 416
- HK MR556
- HK MR762
- HK 417
- HK G28
- HK SL8, SL8-6, SL8-1
- HK G36 Full-Size
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Great part. Will install on my next build.
Let customers speak for us
from 51 reviewsNothing but the best.
Wow! I'm so glad I was able to grab the last SOCOM profile 14.5 A5 barrel available for now. IMO the fit and the finish is top notch and can't be matched.
I shot nice thight groups out to 100m... so, I can't complain. Looking back, I wish, I could have gotten at least one more barrel for a future A5 project.
Alan Taylor
Dallas, Texas
Very high quality barrel. I would consider this to be as good if not better than the hk made barrels. The chrome lining is excellent and the overall fit and finish is top class. Very smooth shooting would definitely recommend if you are wanting to build a clone or just looking for a high quality cold hammer forged chrome line barrel.
Just got it last Friday so I haven't shot it yet. I purchased the barrel and had Marvin install it on an MR556A4 upper. The work looks really good (no little nicks or anything), the barrel itself is well-made and it's nice seeing a chrome-lined barrel on an HK MR carbine! Would definitely recommend Marvin's work as well as NA for offering us "civvies" a mil-spec barrel. Kudos!
P.S.- Holly answers the phones there and she was very helpful and polite. You all have a solid employee!
Very high quality and definitely adds pressure to the system.
Excellent option for the MR556A4 and 416 clones.
Marvin and his products are top notch. Perfect fitment, excellent quality. These are the best barrels outside fo factory HK that one can buy!
For your barrel nut torquing a must have precision made tool. Excellent machined quality to use on a number of AR , KAC , Centurion Arms or HK variants.
Nicer than other popular and similar tools I have. protect your barrel extension index pin! Get one!