Posted November 29, 2018 10:30 pm by Comments

By John Crump

Ultradyne Mercury Muzzle Brake
Ultradyne Mercury/C4 Dynamount Sight Combo

U.S.A.-( was contacted by Ultradyne to see if I would be interested in testing out a couple of their products. They make some very high-end AR-15 parts, and I needed an excuse to build another AR-15, so I said: “why not?”

Ultradyne sent me their Mercury/C4 Dynamount Sight Combo. This combo consists of their Mercury muzzle brake (Ultradyne names all their muzzle brakes after Roman gods), C4 Dynamount Front Sight, and C4 Rear Sight. I couldn’t wait to get them in, so I could install them on my new “work required” AR rifle build.

Ultradyne Mercury Muzzle Brake & C4 Dynamount Sight Combo

When the package from Ultradyne arrived on my doorstep I ripped into the box. I was excited to open it up. When I did open the box, I was surprised at the packaging of the Ultradyne products. I usually don’t write about product packaging, but the Ultradyne packaging was so unique compared to other company’s packaging I must mention it in this review.

Ultradyne packaged each item in what I can only describe as pill bottles. The aesthetics of the design of the packaging is fantastic. Getting the …Read the Rest

Source:: AmmoLand

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