What have you done to your AR(s) today?

[AndyLate]

I took my newly assembled 22 LR dedicated upper to the range and ran a few hundred rounds through it.

Andy

[jarhead8692]

I finally got my 2 "Instruments of Liberty", to the range today, for an Official Zeroing-In. Also took the son-in-law, so he could get his zeroed-in...

[26 Inf]

I took my newly assembled 22 LR dedicated upper to the range and ran a few hundred rounds through it.

Andy

If you haven't yet, check these out: https://www.redi-mag.com/product/bet...azine-adaptor/

Allows you to use S&W MP-15-22 mags and lock back after last round.

[Spiff_P239]

I mounted a SureFire G2 in an Odin Works M-Lok mount.

[AndyLate]

Diassembled my RTB (CMMG) dedicated rimfire bolt and filed about a mm off the end of the recoil spring rod where it fits into the backplate. It was proud of the backplate in the rear and marked my Sionics lower. It is slightly below flush now.

I also made a "pressure plug" from an unused carbine buffer. I cut the large end off and inserted a second poly bumper. The theory is that the plug applies forward pressure on the rimfire bolt, improves functioning, and reduces wear on the lower caused by the bolt "floating" in the upper. I have been told that the plug is really intended for the conversion bolts with chamber adapters. It gave me something to do and makes attaching the dedicated upper much more exciting.

Andy

[AndyLate]

If you haven't yet, check these out: https://www.redi-mag.com/product/bet...azine-adaptor/

Allows you to use S&W MP-15-22 mags and lock back after last round.

I am familiar with them, but RTB was/is selling a bolt with 3 mags for a good price. If/when it is time for new magazines, I will definitely explore the options out there.

Andy

[Rogue556]

Swapped out a Geissele lower 3rd mount for my Comp M5 for a Unity Tactical FAST. This setup is dedicated for night vision use mostly, so the high mount should make passive aiming easier, but we'll see.

Just mounted it so I haven't had a chance to run it yet. It's going to take some getting used to at 2.33"

Excuse the crap phone picture.



Sent from my SM-N910P using Tapatalk

[1168]

Shot one. We’re working on a 62FMJ load that works with the same zero as 68gr Hornady Frontier.

Edit: what I mean is same POI at 200m for training purposes.

27.3 BL-C(2) under a 62gr FMJ got us A zone hits at 200m, alongside 68gr Frontier 5.56 and Fusion MSR without touching the dials on an 11.3”. Similar results with the 14.5, but it sent the MSR a couple inches right, into the C zone.

[uffdaphil]

Bore sighted new AR10 and 15 builds plus a rebuilt 5.56 and my SHTF with new optic. Hopefully get them fine tuned this week if the range is dry.

[26 Inf]

I also made a "pressure plug" from an unused carbine buffer. I cut the large end off and inserted a second poly bumper. The theory is that the plug applies forward pressure on the rimfire bolt, improves functioning, and reduces wear on the lower caused by the bolt "floating" in the upper. I have been told that the plug is really intended for the conversion bolts with chamber adapters. It gave me something to do and makes attaching the dedicated upper much more exciting.

Andy

I'm not sure I understand what you are doing. Couldn't you just remove the buffer retainer to accomplish putting more forward pressure on the conversion bolt?

ETA: Late to the google party: https://borebuddy.com/product/22lr-plug/

I have trouble with my conversions not cycling with some folks, this might alleviate the hoarseness I acquire from repeatedly saying 'hold the rifle tight into your shoulder.'

I'm going to try removing the buffer retainer and see if that helps.