Don't waste your money on a JP speed hammer. Just take the hammer out of your regular LPK and lob off the bulky part of it. As far as the LMOS bolt carrier, why not just get the young super light carrier? Sure its a bit heavier, but its in stock and I'm not good enough of a rifle shooter (yet) to really reap the benefits of the weight difference.
At our range, I continue to find .223 rounds in the spent round container with light strikes. Factory rounds.
I shoot them in my bushy, and have not had a probelm. Would the lighter hammer cause this with a stock spring? I'm thinking a heavier spring would stop this?
I'm not an AR builder. Just a shooter so don't rely on my opinion