Bolt Action AR-15 Upper

[glockman19]

I'm going to finally build a bolt action upper.

Fulton Armory:

Upper Receiver, Side Cocking, Flattop, Reinforced


Bolt Carrier Group, Complete, M16/AR15, Chrome, No Forward Assist Notches, Side Cock


Kreiger 24" barrel without a gas port 1:9 twist.

This will be a hunting rifle only shooting 62 grain Barnes TTSX bullets.

Cost $854.

This is what I'm looking to build:




Any other thought's or suggestions?

[Toten Kopf]

What are going to "hunt" with a 62gr. bullet, and why just a 1-9 twist barrel?

[omgwtfbbq]

Also if you're going for a heavier load like a 62+ gr. projectile, the 1:7-1:8 twist is preferred.

[glockman19]

What are going to "hunt" with a 62gr. bullet, and why just a 1-9 twist barrel?

I can hunt just about anything up to a small deer as for the twist rate I went to Barnes web site and the 62 grain projectile is optimized for a 1:9 twist rate. Copper projectiles being longer require faster twists to stabilize.

[glockman19]

Would 5R rifling make it any more accurate?

[MongooseV8]

Good plan. Don't listen to the nay sayers. A 62 grain TSX will kill just fine with proper shot placement.

My only suggestion would be barrel length. A 24" barrel won't be necessary and will be heavy for a hunting rig. I know a 16" will be plenty fast enough out to 200+ yards for a boar. So a nice 18-20" medium profile would be my choice.

[Thanatos2203]

Any other thought's or suggestions?

Yea, if you are going to make a heavy AR-15 just make it an AR-15 and don't neuter it by making it an overly complex bolt gun. I understand if it is just second kind of cool for you, but bolt action AR's take the worst features of the AR (complex moving parts) and the worst features of a bolt gun (slow rate of fire) and slap them into one. If you want a bolt action rifle then buy/build exactly that. It will be simpler, more rugged, more accurate, and lighter.

[MarikinaMan]

Why is there a gas block on that bolt rifle?