M110 / MKII Gas Block
M110 / MKII Gas Block
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Designed specifically for MKII and M110 KAC barrels, this premium gas block is built for shooters who demand rugged reliability and precise compatibility. Featuring Picatinny top and bottom rails, it allows secure accessory mounting while maintaining true alignment. Constructed from hardened steel with a durable black phosphate finish, this gas block is engineered for strength, corrosion resistance, and long service life.
Each unit comes with a complete pin kit for proper installation and secure fitment. Compatible with the M110, MKII with flip-up sight, and MKII suppressor system, this gas block ensures mission-ready performance in any build or rebuild.
- Gas Journal Diameter (ID) 0.750"
Note: Professional installation by a qualified gunsmith is strongly recommended for correct fitment and safety.
Content List:
- M110 / MKII Gas Block
- 5/32" x 3/4" Spring Roll Pin
- 5/64" x 1/2" Gas Tube Retention Pin
- #0 Taper Pin (Qty. 2)
- Suppressor Index Pin "KAC" Clone (Qty. 2)
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High quality and fast shipping
Very nice finish, excellent fit. I like the pin locations have dimpled centres, makes drilling that much easier. Having both the HTX and Nefarious I prefer the latter.
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!