So I’m a low to mid level machinist in the gun work looking to build 280 ai rifles and someone suggested the Remington 7600 pump action rifle. I’ve never seen the inside of that rifle so I’m curious what the conversion process would be for that. I’ve done a decent amount of Remington 700 re barrels.

How would I start? I'm looking for schools, SDI was 1 of the many that came up, but i need actually gunsmithers opinions if anyone could help thank you. 💯

Any gunsmith here that make custome firearms?

[ Removed by Reddit on account of violating the content policy. ]

If anyone knows of any sites the have Star Model B slides, it would be super helpful. I found one the other week, but waited to buy it, and now its not for sale. I can find slides for the Starfire, BM, 1920(or 1922 forget the name). But everything I'm finding is either sold out, or not available for whatever reason. I've only found the slide/ slide with all inners 3 times. Each time I wait on it and fook myself when I go to grab it and its gone.

Like there's no way they're this rare/scarce.

I'm not asking for someone to sell me anything, just if anyone knows of a website with its availability.

Any recommendations for barrels? Homemade winter project.

Can anyone recommend a good book explaining firearm concepts, history and tradeoffs of designs.

As an example, short-stroke, long-stroke, direct impingement gas systems. Are those the only designs, what were the first, what caused these systems to be designed and implemented? Breech-locks, having just learned about this concept, what other terms and designs are there? Why does a breech need to be locked, what's an example of a firearm without a locking breech?

I'm not looking to smith my own gun, I'm just wanting to understand the practical designs and physics of how these designs work.

I want to build an AR10 with a 16 inch threaded barrel and I will like to go with a good quality barrel . This is only my second AR build and I’m still learning .

I know 16inch is not the ideal barrel length for .308 Winchester but I still want a quality and accurate barrel for this build . I plan to put a suppressor or muzzle break in it to help reduce some of the recoil.

Thanks.

Does anyone know if helicoils will work safely for repairing an optic screw hole ? Also where can i find them in such a small size? Thanks in advance

Ok, so, I'm aware this is extremely uncommon. Also likely to be difficult to find someone who's done this before. I get the fact there's risk, just check the situation first please, and I'd appreciate limiting the ridiculous unnecessary drama or nay sayer comments until the relevant information is discussed. After that, have at it. -Situation: a very good person I know, who is dying, has me on a project where a pistol he bought that had a custom engraving on its barrel (material is forged steel), I removed said engraving per his request, and he obviously wants the tiny bit I took out by super small and expensive die grinder bit, to be filled in so he can then stamp it with his own personal saying or whatever (yeah probably not in the spot I'll be welding I'm aware welding material is very hard & so it's he). We are both familiar with metals and welding in the usual context, this is a touch different.

So, to my understanding, the forged steel needs to be pre heated, care to be taken not to transfer much heat while welding, then slowly allowed to cool to prevent any shock cracks. This correct so far? Yes the surface will be super clean, and I'll likely clamp a block of aluminum to it to absorb heat. I also have thermo-sorb like an HVAC paste we use when brazing sensitive materials, it "absorbs heat".

Experienced people's input very very welcomed

Does any one have experience with ED Brown extended striker plunger? I was thinking of adding it since when I installed Apex trigger and ultimate plunger kits for more solid reset and wall (the trigger upgrade is much better). Do yall think this will help for this purpose.

Sorry if not allowed.

If any of yall build parts kits here is an invite link to my builders group on discord. Just tring to end the gate keeping of building parts kits.

https://discord.gg/kXJWpKbm

https://preview.redd.it/uv6ybnkt8c0e1.jpg?width=1920&format=pjpg&auto=webp&s=ea18576cfc1eb2b0a1172a045cb79de7a7a2f744

Hey all, does anyone have knowledge/experience with a 1980’s manufactured Colt AR-15A2 (Sporter II)? Recently a family member called me to come over and help him take the upper off of the lower so he could clean it easier after a range trip. I thought he was joking at first, but once I got my hands on it I realized it’s got a completely different takedown pin setup than a standard AR with a captured system. The pins have 2 flathead-like screws, one on each side, as you can see in the pictures. The screw on the right side does not budge when you try to loosen it and he had already tried to remove it in the past, cosmetically damaging it in the process. The screw on the left side however does unthread from the pin. From there (bottom right picture), we tried tapping the pin out from the upper/lower but it does not seem to budge with a punch and hammer, even after a few good whacks. I don't want to risk breaking the pin holes on the upper/lower, am I missing a step that needs to be done before this pin will budge? I've tried a bigger punch to try and punch the whole assembly out, and I've also tried a smaller punch that does all the way down to try and knock it out that way, but no luck. The only Youtube videos (very few) I can find on similar Colt rifles with similar pins, they all fast forward over the actual removal process of the pin. So my questions to you guys are: 

- Are these pins removable, or are they permanently installed to marry the upper/lower receivers on this model?

- Does anyone know the pin size on this model?

- If the pins are removable, does anyone know where I can source replacement ones?

Thank you all in advance

Howdy, so recently (~4-6weeks ago) I shot my rifle (14.5in pin and weld) with a suppressor for the first time. Afterwards it will only cycle certain ammo types. I typically shoot PMC bronze PSP (3200 fps mv) and pre supressor had no issues. Now the rifle will only cycle Winchester white box 62 gr green tip (3240 fps mv) or “hotter” I’ve tried adjusting the gas every way imaginable but when I shoot the PSP I get ejection but failure to feed, it’s as if the BCG doesn’t cycle far enough back to cycle the next round. Easy answer is only shoot 62gr but I feel as if a rifle that only cycles with certain ammo is next to worthless. Second easiest answer is a lightweight buffer but I also feel as if this is a bandaid for a potentially real issue. Where do I start? How expensive is this gonna be? I plan to replace the gas tube but want some expert opinion. TIA

Any insight on getting rid of this liftoff / play. Glock slide with grey ghost precision frame.

Bought bulk ammo of 1000 rounds of 5.56. are these safe to shoot?

I have an old 12 guage double barrel I'm hoping to get some info on.

Sub recommendations?

Hey guys, just found my bolt came into contact with some glue which has caused this.

Do you have any ideas on how to get it off, along with this once off if it can be how would I recolor it to black. Thanks heaps

I'm not completely clueless, I know how guns work. I would love to get into gunsmithing as a hobby, but I really just can't settle for such expensive equipment. What is the bare minimum?

I(M15) just came into possession of an antique 1890's Colt revolver, and so far it seems like my family hasn't been taking good care of it. It's got a small warp at the end of the barrel, and the double action on it is broken. I think the issue with the action is just the spring, but it could be deeper. The issues are besides the point: I won't be the one fixing it. Can anyone point me in the right direction of who to ask/Where to go? I work on a few other guns but this things a relic... I don't trust myself with it. I just need to know who I can trust to fix it, like what qualifications or titles they should have. I tried to reach out to Colt, but they haven't responded. DM's open!

I'm trying to find out if bore lapping will help the accuracy of my rifle. I picked it up a while back and put some iron sites on it. The thing shoots well at 50 yds but opens to over 10" at 100 yds. Upon inspection of the bore with a bore scope what looks to me like major stepping was discovered starting just past the throat as light lines and getting progressively more prominent all the way to the muzzle. To the naked eye the bore looks pristine. This is my first time dealing with this issue and only found out about lapping recently. Any educated input is appreciated.

Can anyone guide me to a place I can buy a replacement stock for this gun? thank you!