For decades Colt AR-15/M4 Rifles have used Mil-Spec M16 bolt carriers in their civilian models because of their geometric superiority, increased durability, and weight. These bolt carriers follow in that colt tradition, increasing desirable traits like rate of fire and accuracy over standard AR-15 bolt carriers. These bolts are perfect for your next build and have been purchased by gun smiths for binary trigger jobs across the country, just check out a plethora of positive bolt carrier reviews on gunbroker:
Why buy this bolt carrier?
Full auto configuration
All a full auto carrier is, is additional material along the rear end of carrier allowing the BCG to trip an auto sear on a full auto M16/M4. If you have a legal NFA item these bolt carriers will all you to function your rifle in a full auto configuration. There are other benefits to this as well. To begin, the configuration allows for a more durable and reliable build. Non-full auto bolts suffer from a high chance of bolt bounce – where the bolt hits the chamber and comes back toward the buffer tube, no longer being in contact with the chamber and causing a malfunction. Binary trigger jobs require a full auto bolt, as a result this model is very popular with gun smiths.
Compatible with 556 / 223 / .300 Blackout / .350 Legend
Are you looking to build a .350 legend hunting rifle or silenced .300 blackout build? Well this is a perfect option for you!
The carrier itself is manufactured out of 8620 tool steel
This is the steel the U.S. Military uses for their “mil-spec” carriers. It’s a relatively affordable steel that has performed admirably in full-auto M4s and M16s for decades.
The bolt itself is manufactured out of 9310 tool steel
Metallurgy has come a far way since 1960 when the US military chose, Carpenter No. 158 steel. Now 9310 is actually stronger then any bolt carrier configured in Carpenter No. 158, if heat treated properly. All of our bolts are heat treated to the highest standards, increasing the yield and tensile strength of the bolt itself beyond anything achieved with Carpenter No. 158.
High-quality anti-corrosion Nickel plating
Our bolt carrier groups come with a nickel plated finish that is guaranteed to prevent any rust or corrosion from occurring on the bolt, increasing the durability of your rifle.
All of our geometric, dimensioning, and tolerancing as well as our materials are to military specifications or better. Whether it be our 4140 gas keys or full auto configuration, you will be happy with our bolt carriers.
I have bought three of these bolt carrier groups for AR-15 rifle builds and the quality is top notch. I have been buying firearms retail from JNJ Sporting Goods/Werewolf Personal Defense for twenty years, I met Jimmy at a gun show and he has always treated me like family.
The quality of this bolt carrier is incredible. I was shocked by the incredibly low price especially once I actually received the carrier. I would put this up against any other premium brand of bolt carrier on the market.
Werewolf Defense came in clutch. My kid’s birthday was this week and I needed a bolt carrier for a .350 legend hunting rifle I built for him. Quality was AWESOME, they shipped it within minutes of ordering. Wish everyone else shipped as fast. Still waiting for my Palmetto ammo order a month later….
Packaging was nice, quality was great. Shipped same day as order date. I wish they made one in 7.62×39. They said they have to order in bulk. Anyone else need some?