06-15-2011, 03:20 AM
BjornF16 Wrote:I'm looking to build a lightweight, mid-length upper. I really like the looks of the Ultra-light from AA, but want a threaded barrel for one of Warped's muzzle brakes.
Here's what I'm planning on buying, but looking for any advice:
AA Spartan 18' threaded barrel/bolt
JPE low profile adjustable gas block
JP/VTOR mid length modular hand guard
AA upper receiver
Still looking for lightweight carrier...help!!!!
What am I missing?
Bjorn
Bjorn,
Just be advised that the lightweight JP carriers are meant to be used as one component in a series of components that are designed to increase the cyclic rate of fire in semi-auto for competition shooters in USPSA 3-gun events, to help shave time off a run. They are not recommended for a field or duty gun usually. They are meant to be used with an adjustable gas block, a different buffer, and even different recoil springs in a rifle-length extension tube. After assembling a "race gun" with these components, the competitor will then find a load that works best with his or her rifle for reliability, and play with the adjustable gas block a lot to find a very fine balance between reliability and recoil in doing so.
I'm not sure how those lightweight carriers would hold up with the Grendel for maintaining lock-time properly either, but if you do go that route, it might be educational from an experimental perspective.
I would personally steer away from such a system for a lightweight stalking gun, as you can shave most of the unwanted weight off your rifle/carbine with a lightweight barrel, and careful selection of ancillary parts for furniture, aiming solutions, etc. With the same barrel profile, a Grendel will be lighter than a .223 or 5.56 anyway, since it has less mass from the larger bore diameter.
LRRPF52
