Hey guys. Built my 375 H&H AR, now just have some minor work to do before hopefully test firing this weekend.
Just need to make a handguard, install detents, safety, and FA, and grind feed ramp a bit.
Its a left side, forward charging piston.
Handle does reciprocate, as it is directly attached to the piston.
Gas port is 18 inches from the back of the barrel extension, gas port is 0.082", because I figure the 375 has a lot longer pressure curve, and piston rifles don't tend to need as much gas to operate anyways. If it doesn't work, I'll drill it out a bit. But I don't think it will be necessary.
Just need to make a handguard, install detents, safety, and FA, and grind feed ramp a bit.
Its a left side, forward charging piston.
Handle does reciprocate, as it is directly attached to the piston.
Gas port is 18 inches from the back of the barrel extension, gas port is 0.082", because I figure the 375 has a lot longer pressure curve, and piston rifles don't tend to need as much gas to operate anyways. If it doesn't work, I'll drill it out a bit. But I don't think it will be necessary.