09-22-2017, 09:51 PM
The first key part has been ordered and has shipped earlier than anticipated:
2A Armament Titanium Regulated Bolt Carrier
https://2a-arms.com/collections/bolt-car...lt-carrier
Yeah, it aint cheap, but it was actually a pretty good deal with the pre-release sale. Really just a few bucks more than a JP LMOS with bolt. And it weighs in at 5.95 oz with the bolt. In comparison, the JP LMOS carrier (without bolt) is 6.75 oz. The 2A 223 bolt will go into the BLK SBR and Ill still need a JP Grendel bolt (which is what Proof headspaces to). In addition to the weight, having the gas regulator in the carrier is actually a bigger plus for a lightweight build since it will negate the need for an adjustable gas block and 0.875 inside diameter adjustable gas blocks can get pretty big. So this opens up the universe of thin profile lightweight handguards that can be used without having to worry about length and clearance. They have a video that shows how the RBC functions on their steel carrier at the bottom of the above link
Im not terribly concerned about it being too light. It will be mated with a JP SCS with the alternative spring pack. I dont think dwell time will be an issue with an RLGS and if it is, going to a heavier spring should ease it up. Worst case is I need to put a tungsten weight or 2 into the SCS.
2A Armament Titanium Regulated Bolt Carrier
https://2a-arms.com/collections/bolt-car...lt-carrier
Yeah, it aint cheap, but it was actually a pretty good deal with the pre-release sale. Really just a few bucks more than a JP LMOS with bolt. And it weighs in at 5.95 oz with the bolt. In comparison, the JP LMOS carrier (without bolt) is 6.75 oz. The 2A 223 bolt will go into the BLK SBR and Ill still need a JP Grendel bolt (which is what Proof headspaces to). In addition to the weight, having the gas regulator in the carrier is actually a bigger plus for a lightweight build since it will negate the need for an adjustable gas block and 0.875 inside diameter adjustable gas blocks can get pretty big. So this opens up the universe of thin profile lightweight handguards that can be used without having to worry about length and clearance. They have a video that shows how the RBC functions on their steel carrier at the bottom of the above link
Im not terribly concerned about it being too light. It will be mated with a JP SCS with the alternative spring pack. I dont think dwell time will be an issue with an RLGS and if it is, going to a heavier spring should ease it up. Worst case is I need to put a tungsten weight or 2 into the SCS.
Let's go Brandon!