The NFA branch has been through lots of revamps the past few years. Not just with personnel, but with form processing also. No one knows to what extent. Could be that submissions are screened initially by support staff. Catching errors and what not. Then the legit forms are sent off to another queue...

300 BLK doesn't need a brake IMO, no matter what barrel length. Mainly because the recoil is mild. And its muzzle pressures are low enough not to worry about baffle protection much. A supersonic BLK round in a 9" barrel has roughly the same muzzle pressure as 556 in a 16" barrel. Someone r...

Place the muzzle brake wrench flat area in a vice. Then you can twist the ASR ring.

Clean up the threads and use Rocksett for muzzle devices.

The flash hiders can definitely be removed. The threaded length for rifles is longer (0.600") than typical pistol barrels (0.400"). Most dedicated 22 cans are designed around the shorter threads, so you will need a spacer. Preferable a high quality threaded one, not just a slip-on. I would...

In a nutshell: quietest 45 suppressor with no FRP? Obsidian 45 or Octane 45 FRP exists to some degree in all silencers, pistols and rifles, whether you hear it or not. Generally, FRP is more pronounced in monocore cans than ones with individual baffles. The Osprey is monocore and can't be disassemb...

According to the 45M manual, the Tirant baffle stack is still the same... 1 SS blast baffle and 8 Al ones. And the removable front tube is Al, not Ti. The grey and black colors don't indicate steel or aluminum. There's no mistaking the steel blast baffle from the others; it's much heavier. Was hopin...

Just call up customer service and have a chat. Don't bother emailing; they rarely respond.

They had a small batch of 1/2x28 pistons a few months ago. Ran out pretty quick. Nothing yet on any other pistons. Same scarcity with muzzle devices i'm sure.

There is no increased risk in endcap kisses if everything is manufactured within specs, and the can isn't loose. There's definitely a dB difference between a 9 and 45 endcap. But depends on the shooter's ears if they can perceive it. When you own both sizes, just always be extra alert as to which on...

Ok i had to watch a recent youtube video to make sure I understood what's going on with this so-called taper cap. https://www.youtube.com/watch?v=gQFO8QlE734 That kinda looks iffy to me. Sig parts quality and manufacturing tolerances are no doubt top notch. But still, at best this introduces toleran...

You can continue to use the older 2014 (even 2010) version. Actually it's recommended since the newest version is longer and more complicated now.

They can't do that legally since it would change the caliber of the can.
Besides, i doubt Silco does any custom work for individual end users.

HHsurfer wrote:I have question that is a long the same lines as the first post. I have a Sig MCX coming any day now, do any of you know what to put down for the model, MCX or Sig MCX?

Put exactly what is engraved on the lower. (except the MULTI-CAL. part)

I'm guessing it's gonna be "SIG MCX"

300 RUM is still the bigger cartridge, so i'm inclined to say the Specwar should be fine with 300 Norma.

Recently bought a gen2 factory sbr MPX. The Form 3 to my dealer was approved with the model listed as "MPX", but the examiner noted that "3d = SIG MPX" So on my Form 4 I put SIG MPX for the model. Makes sense since the actual engraving on the lower says: SIG MPX MULTI-CAL. I got ...

The Sig brace fiasco was dumbfounding. From a mental/psychological aspect mostly. The most important thing is to have an approved stamp, period. Then you can safely play these rifle/not-a-rifle/SBR/pistol/shoulder/not-shoulder/state-lines mindgames all you want..... unlike what happened to this poor...

Length restrictions only concern supers. BLK subs are very similar to just a hot 45acp load, so no worries about barrel length at all.

CanOfWhooppass wrote:I've never heard of it offered with anything other than maad mount.

Sakers can use both MAAD or ASR. Swapping new mounts is up to the dealer. If the dealer can't do it, Silco will swap it out for free also.

There are official thread specs for 92 barrels. Because of the shorter protruding length, threads are only 0.33" long vs the normal 0.438". You can safely use the shorter threads. Just be sure to check the tightness often. The shorter thread length tends to loosen/back off quicker than nor...

My MPX form 3 transfer was submitted 3/28 and approved 5/18.... just over 7 weeks. And just an FYI for future MPX xfers: the correct model name should be "Sig MPX" not just "MPX" since that's how it's engraved on the lower. Was damn lucky the F3 wasn't kicked back so close to the...

Periodically check the NFA classifieds on ar15.com. You just missed one from last week.

http://www.ar15.com/forums/f_7/118_NFA_ ... Parts.html

Not a problem with the fixed spacer.
Don't have much of a choice anyway since AAC never made fixed mounts for Tirants.

Or you could use the 3-lug system on the 9mm host. And get the Triad adapter:

http://www.advanced-armament.com/Triad- ... p_671.html

In today's digital age, sure why not. Just keep a copy on your phone and/or thumbdrive.

Was thinking maybe one of the existing Tirant or Evo fixed spacers would work, but after looking at the Illusion's spring... it's way longer. Several coils longer than a Tirant's.

Pretty sure AAC already has some Illusion spacers in-house. Just not mass produced yet.

Unless you're emailing a specific person, always call instead and save the wasted time.
I learned the hard way already from both Silco and AAC.