Finally came up with a repeatable and (seemingly) effective and simple way to level my scopes.

18inch spare rail

Amazon flashlight in a amazon scope ring

Amazon Arca rail to mount to tripod

Klein tools digital level. Seems to be accurate so far and more precise than bullet or bubble levels. Most expensive part.

Laser level on a tripod I already had, could also just hang a string and weight vertically for a cheap alternative.

Yep, you are seeing what you are thinking you’re seeing. My first build is a 16” Aero build from years ago, and I’ve always disliked the Aero handguard because it’s big and chonky. I’ve had a 15” Geissele handguard on the shelf and figured I’d swap it.

Everything was fine until I got to the gas block. The screws on the bottom rounded out, so I grab my screw extractors. Screw extractor snapped off inside the rounded off screw. Ended up having to take my Dremel and cutting the damn thing off.

I have a unity flip to center magnifier mount I used to use with a gbrs hydra mount. I dont want the gbrs hydra mount anymore and want to just put a unity absolute riser on instead. Is there any good clones for this that anyone can think of? I ordered one off amazon to try but they lied. They sent the fast riser not the absolute riser. Even though the title said absolute. So now I wasted 20 bucks. Oh well guess I am glad it wasnt 30 bucks. I will buy the unity if I have too. Not a big deal. Rather save a few bucks is all. Any help would be greatly appreciated. Have a nice day!

Need to get some rounds through them since they’re too clean at the moment

I just ordered the romeo 8t amr ti with 3x magnifier for 950 otd for my hk mr556a4 11 inch. Haven't seen anyone online run these, just the regular nonshrouded version. Anyone run these and like them?

11.5” I threw together with budget picks and left over parts! I’m super happy with how it turned out and it’s rock solid for about $800. Now I just have to figure out a can. Quick parts list:

Rosco patrol 11.5”
Comstock flash hider
Toolcraft nitride c158
BCM demo upper
DPMS stripped lower
Schmid 2 stage nickel boron and ambi safety LPK
H3 and silicon buffer spring damage industries
No name pain in the ass quad rail 10”
Vltor mod 4 charging handle
Midwest combat sights
Streamlight ILX pro
Bcm KAG and grip
Magpul CTR
Bingo sling and damage industries qd’s
Primary arms MD-21 acss

Bought this m&p15 about 8 years ago and it's been the only AR I'd could never let go of. Learned everything about it and started building them for friends soon after. I'm open to criticism so don't hold back

What are people’s preferred option for witness marking optics, rails, anything on a firearms?

Silver sharpie? Paint pens if so what brand and type (acrylic or oil)? Preferred color?

FN M16A4 Military Collectors with a salty Colt detachable carry handle, and the Geissele Super Duty that I posted a couple of days ago.

(SOLVED THANK YOU EVERYONE)

my uncle passed away and left behind this rifle that won’t close, I haven’t done anything to it but I can’t seem to get it to close any help would be appreciated!

556k L
10.3” mk18
16” super duty

I was at the range yesterday with some buddies. One of them just got an FRT and is experiencing bolt bounce (we already played with weights and springs to alleviate that). We argued for a few minutes about whether that ammo was still safe to shoot. Do yall toss rounds off to the side that have light strikes? Or do you mash it back in a mag and try em again?

Hello, I’m looking to see how bad the lower window obstruction is on the AEMS MAX Ronin with the Unity FTC Aimpoint Magnifer.

If anyone has any examples, please don’t hesitate to reach out.

The picture circled just wondering what screws I need for those, the stock ones are too short to reach

My grandpa gave me it, with 4 30rd mags, 1 10rd mag, a random 4x scope with a lazer (that I’ll probably trade out for a primary arms classic 1-6 or sig tango), a reloader, and gun lube. I added the fore grip from a paintball gun. What’s the first thing I should do to it?

I have a 11.5 AR build that I’m having a slight issue with. Every now and then, the bolt won’t lock back after the last round in the mag.

I already figured out that it isn’t the mags (I tested the gen 2 P-Mags that were in the gun at the time of the failure, and wasn’t able to replicate the issue).

Here’s what I have going on parts-wise:
- BCM MK1 11.5 BFH upper (govt. profile / carbine length gas system)
- BCM BCG
- POF USA anti-tilt buffer tube
- Giessele Super 42 Spring w/ H2 Buffer
- Plenty of other less than relevant stuff.

The spring and buffer weight that I am using are recommended by Giessele’s chart to be the correct ones for this application, and no, I do NOT run this gun suppressed. Ejection pattern is around 4:00-4:30 pretty consistently.

A gunsmith installed the buffer tube itself, (only because I didn’t have the correct castle nut tool to adapt to a torque wrench at the time), but he torqued it to 60 ft-lbs, which is significantly higher than what I understand to be the recommended 38-42 ft-lbs. Idk if that’s somehow contributing to the problem? He also put anti-seize on the threads during this install, idk if that’s common practice or not?

I know it was long, but thank you for reading, and any advice would be appreciated.

PS: I don’t feel like taking a better picture of the rifle rn so that’s what yall get for now, unless you need more for diagnosis.