Rainier: At almost 5 lbs, this rifle is way too heavy for the money. You've included numerous expensive, ultralight parts from V7, but missed out on some key weight-saving opportunities. Also, it really needs adjustable gas. If your team wrote the specs for this rifle, here are my suggestions that will get you close to 4 lbs:
- Scrap the aluminum buffer tube, H1 buffer and BCM adjustable stock
- Instead, substitute a Smoke Composites combination buffer tube and buttstock, total weigh for the fixed carbine size is 4 oz.
- Taccom makes a 1 oz buffer for this application, along with a reduced-strength spring which is correct for a lightweight carrier and adjustable gas.
- Assuming the 16" barrel has a middy gas port, then the length of the handguard should be just long enough to cover the gas block, I suggest V7's 11" size. I understand the long handguard looks nice to some people, but the drawbacks are the extra weight (when you are shaving grams) and the inability to grip the barrel in a vice while torqueing on the muzzle device, without removing the handguard.
IMO, ultralight ARs are a growing market and the lighter the rifle, the more interest. Holding one in your hands is a real eye opener, it feels like a toy but performs like a champ. - CW