AR assembly techniques.

[Kain]

There are good reasons to build with a mil-spec. As a civilian/non-LEO, the edge being primarily legal - in that altered trigger break weight cannot be used against you as evidence that you had "intent" in altering your rifle's performance, and a moral oblige to adhere to a stiff, mil-spec break weight as a last line of defense against an improper shooting. Paper may not always be your target, and when it isn't, you don't want to be on the existential side of the discussion.

If the shoot is bad is ain't gonna matter much what you used or what mods you did. If the shoot is righteous then it is righteous, no one cares accept perhaps the civil side, and that is a different situation.
I would also request any actual case law showing that legal mods to the firearms actually were used in an actual prosecution. I have yet to see any in a righteous self defense case.

[Jmedic_]

If the shoot is bad is ain't gonna matter much what you used or what mods you did. If the shoot is righteous then it is righteous, no one cares accept perhaps the civil side, and that is a different situation.
I would also request any actual case law showing that legal mods to the firearms actually were used in an actual prosecution. I have yet to see any in a righteous self defense case.

I agree with you 100% on this. Idk where this idea came into people's heads about modifying the gun puts you under more scrutiny. Maybe somebody has a lighter trigger in their gun because they have arthritis, or maybe a female that doesn't have the grip strength to feel comfortable with a standard trigger pull. Lots of valid reasons for modifying your guns, on top of the fact that trumps all others, which is, it's completely legal to modify your gun!

[MistWolf]

...It's a gimmick.

Using a set screw to hold the detent pin & spring in place may be a gimmick, but it's one that makes assembly and disassembly much easier.

[tehpwnag3]

I've never had a problem with losing or kinking the spring. For the time and effort to tap threads and trim the spring, I'd have the stock or end plate already installed. To each his own.

[26 Inf]

I've never had a problem with losing or kinking the spring. For the time and effort to tap threads and trim the spring, I'd have the stock or end plate already installed. To each his own.

It would be quite easily to do this during the manufacturing process. I don't know if it would save time during initial assembly. It would probably be quicker for someone who puts together dozens at a time to use a shim (as opposed to the razor blade us amateurs use) to hold the spring in place than it would be to install the shorter spring and set screw.

All that being said, it is a nice 'extra' touch if the weapon comes that way. However, as you mention - for the time and effort to tap threads and trim the spring, I'd have the stock or end plate already installed. But damn, I wax the inside of the trunk lid on my 91 Mustang.

[tehpwnag3]

If you like this mod, Spike's pre-taps their lower for this. The up side being the threads are anodized. Not sure if any others do.

[Rascally]

If you like this mod, Spike's pre-taps their lower for this. The up side being the threads are anodized. Not sure if any others do.

Aero Precision does this as well.

[MistWolf]

I've never had a problem with losing or kinking the spring. For the time and effort to tap threads and trim the spring, I'd have the stock or end plate already installed. To each his own.

Some of us ain't so deft. I pulled an RE, forgetting about the detent spring and spent awhile hunting for it. I have one lower I installed the set screw on out of necessity and it has saved me hassling with the spring when swapping the RE as that AR evolves.

Point is, having a set screw makes more sense than not having one.

[tehpwnag3]

I'm tracking you, MW.

[Outlander Systems]

Since its somewhat relevant.

I've assembled something around 30 lowers.

The last two I did, I struggled MIGHTILY with the bolt catch roll pin.

Any hacks/tips/tricks?