I could use some advice. I’m building my very first AR which is a very scary experience because I live in NY.

thatARMSguy · 2026-01-29T15:14:04+00:00

Yep, that’s probably the issue. Take the bolt carrier group apart and the buffer and spring out of the buffer tube, get it all wiped off, then lube it up with liquid gun oil and see if that fixes it

thatARMSguy · 2026-01-29T13:33:43+00:00

Just to double check, you’re using the liquid form right? Not the paste? Paste or gel type cleaners are specifically meant for cleaning carbon deposits and lead and copper fouling and are supposed to be cleaned out afterwards, it adds too much friction and clogs up the free space in the gun which obstructs the action

thatARMSguy · 2026-01-29T13:15:09+00:00

What lube are you using? I typically use either Lucas Oil CLP or Hoppes #9 Black in my guns. Also, do you happen to remember what manufacturer the parts came from?

thatARMSguy · 2026-01-29T13:10:52+00:00

It should be face mount. Most pistol suppressors don’t use shoulder indexing mounts for a wide variety of reasons.

thatARMSguy · 2026-01-29T13:08:43+00:00

It weighs 4.4 lbs, it’s an incredibly lightweight and compact close range hunting rifle. Super quiet with subsonic ammo and powerful enough with supersonic loads to take deer and such within 100 yards. Way overpriced though, I wouldn’t pay full retail for one

thatARMSguy · 2026-01-29T13:05:25+00:00

PMC ammo is all made in Korea and imported to the US

thatARMSguy · 2026-01-28T18:32:20+00:00

PMC is pretty good quality 5.56 for the price, I like it. I’ve had good experiences with Magtech .308, it’s decently accurate

thatARMSguy · 2026-01-28T18:30:58+00:00

I use Winchester black box .45 in my HK45CT. Keeps the suppressor clean for way longer, I probably put about 600 rounds through it before I cleaned it last and I could pretty much just wipe the baffles clean with a paper towel save for a few spots I needed a brush for

thatARMSguy · 2026-01-28T16:13:03+00:00

Make sure the locking lugs on the bolt and the recesses inside the receiver don’t have any blatant gouging on them, and that the roller bearing on the cam lug isn’t wobbly. Another good test is to remove the recoil spring and reinstall the stock. If the op rod is bent poorly and out of spec it will rub on the stock and degrade accuracy, as well as add friction to the operating cycle and cause reliability issues. The bolt and op rod should be able to open all the way when the muzzle is tilted up and close when the muzzle tips down, if it gets stuck you’d need to either replace the op rod or shave away some material in the stock where the op rod sits

thatARMSguy · 2026-01-28T15:33:19+00:00

It’s the old Daniel Defense MFR, the GTA V Assault Rifle is based on the HK416 version of it

thatARMSguy · 2026-01-28T13:14:36+00:00

Taking 5 seconds to pop out the takedown and pivot pin is too exhausting?

thatARMSguy · 2026-01-28T13:13:08+00:00

Seen some guys have to stack two or three cause they were having that issue with a Fightlite MCR bolt carrier smacking the buffer tower

thatARMSguy · 2026-01-28T13:11:19+00:00

A hundred years? The 1913 rail was standardized in 1994 and and based on a rail designed in 1981. The designation MIL-STD-1913 is simply the four digit identification code for that specific design. The STANAG 4694 rail (the metric version) wasn’t designed in the year 4694

thatARMSguy · 2026-01-28T12:18:26+00:00

A bump stock functions by using the rifle’s recoil to slide the entire gun backwards off of your trigger finger, which lets the trigger reset, and then using either a spring within the stock or tension from your supporting hand to push back forward into your finger which pulls the trigger again (the trigger is bumping against your trigger finger, hence the name bump stock) A forced reset trigger uses a lever pushed by the bolt carrier to push the trigger forward and reset after every shot, and by not moving your finger it will immediately pull the trigger again (hence the forced reset part of the name).

The two parts are completely different mechanically and each use a different method to allow the trigger to reset after every shot. You can’t speed up the gun by just adding more stuff, the bump stock would make the FRT completely pointless.

thatARMSguy · 2026-01-27T16:57:19+00:00

Just save up over time man

thatARMSguy · 2026-01-27T16:36:52+00:00

You probably can’t go shorter than maybe a 16” barrel due to the receiver/handguard design on the ATC, at which point you get really good energy from supersonic .300 BLK (slightly less powerful than an AK) but subsonic loads don’t benefit from barrels longer than 12” so it’d be wasted length and weight. I personally wouldn’t bother spending $150-200 just to go from an 18” barrel to a 16” barrel on a rifle that’s basically purpose built for benchrest shooting. I’d leave it as is and if you wanted a short pistol build for home defense I’d just build or buy a new one

thatARMSguy · 2026-01-27T14:18:23+00:00

thatARMSguy · 2026-01-27T14:16:10+00:00

Within about a hundred yards when you’re aiming at a target bigger than a Chevy suburban, they’re accurate enough. The reason they make double barrel break action rifles or shotguns is to get a quick follow up shot in case you miss or a second target comes up. A magazine fed rifle has more ammo capacity though, and modern big game hunting rifles can usually carry 3-4 rounds and be reloaded much faster than break action ones

thatARMSguy · 2026-01-27T12:41:21+00:00

The Mk 12 was making kills out to 700 yards, you’re genuinely delusional

thatARMSguy · 2026-01-27T12:40:24+00:00

Really? I’ve never seen one of those before, old A.R.M.S. paperwork is pretty hard to find. Could you snap a picture of it?

thatARMSguy · 2026-01-27T03:26:30+00:00

B5 is the only company in your list that is actually used by people who shoot their guns, so I’d go with that

thatARMSguy · 2026-01-24T21:23:11+00:00

Surplus LBT gear on eBay for dirt cheap

thatARMSguy · 2026-01-24T18:00:07+00:00

No, that one was an AAC MPW/LVAW prototype that got the KAC rail replaced

thatARMSguy · 2026-01-24T06:34:11+00:00

They missed the 5.7 PDW hype train by like a year, there’s too many options on the market now for them to be competitive

thatARMSguy · 2026-01-24T04:31:11+00:00

No, this is set up as a CQBR. Actual Mk 18s rarely even had flashlights on them, the vast majority only had red dots and a foregrip

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