FailZero FAIL 458 SOCOM Bolt Carrier Group No Hammer Nickel Boron

A: Hi Stephen, Yes a upgraded trigger is needed

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A: Stephen, You do not need a new trigger kit with hammer. UCT Failzero says no hammer because some bolt carrier groups come with hammers because of hardness, coating or type of metal in BCG wil not be the same as existing hammer in lower trigger group. If your doing a build and you have a trigger group with hammer it will work or have a lower set up this will go right in your upper and work. They say no hammer because of the NIB treatment of the BCG some builds/builders would want a NIB treated hammer. Some Failzero BCG come with hammer because of metal characteristics of BCG this one does not that is why it is listed that way. Harder BCG then hammer will not hurt just maybe premature wear on hammer.

A: Not needed Stephen. This BCG simply has All Critical parts are coated with EXO Nickel Boron technology. This Patented Nickel Boron reduces friction by providing permanent dry lubricity and improves performance.