40mm/DD/M203 launcher

[Nwcid]

I have got the bug to do a 40mm of some kind and I have the money, but no real use other than wanting one. I find the beehive rounds interesting and of course just having a 40mm would be cool. I have no desire to do the 37mm route as it is too limiting on what you can legally fire.

The newest thread on this page is from 2020 so I am starting a new one.

If you have a 40mm what kind do you have and what do you do with it? Where are you getting rounds, or components to make rounds? Rough cost per round?

I am debating between a standalone of some kind or rifle mounted. The most likely gun I would mount it on is an original Bushmaster A2.

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[Sporting Systems]

We've had several of these come through our shop in the past year or so.

Rail Mounted M203 Receiver - LMT Defense

M203 40mm Receiver | Rail Mounted Receiver Only L2B1

lmtdefense.com

 

[MTpockets]

Recently assembled mine. I am looking for an antiquated PSQ-18 for sentimental reasons, and will probably get a 12" barrel as well. I have no information on the legality of, or on the use of, M781-style practice rounds.

Edit to add: Here is a rail mount L2B1 (takes 9" & 12" barrels) on sale (21NOV) for $1129

LMT Rail Mounted M203 40MM Receiver

www.titandefense.com

Added Cropped Photo of my M4 / M203 from GWOT era. I am not in the photo.

 

[Sporting Systems]

This was the seller of the last one.

M203 | Rooftop Defense

www.rooftopdefense.com

 

[Stomper]

DANG! I never thought to look into one of these.... it appears they are remarkably "affordable" for what they are. The only problem (for me) is that each (actual HE) round is considered a destructive device that would require a $200 tax stamp (not to mention where would you go to safely use them) in and of itself (just like an M67/68 hand grenade would), not counting the purchase price.... that's a spendy "bloop"!

 

[titsonritz]

I'd want an M79 Thumper just for the cool factor.

View: https://m.youtube.com/watch?v=Qk1R2oY4_VA

 

[JTK1791]

DANG! I never thought to look into one of these.... it appears they are remarkably "affordable" for what they are. The only problem (for me) is that each (actual HE) round is considered a destructive device that would require a $200 tax stamp (not to mention where would you go to safely use them) in and of itself (just like an M67/68 hand grenade would), not counting the purchase price.... that's a spendy "bloop"!

Not if you treat it like tanerite, if assembled and used at the same location within the same day they were assembled you dont have to go through the registering and tax stamp of each round

 

[Stomper]

Not if you treat it like tanerite, if assembled and used at the same location within the same day they were assembled you dont have to go through the registering and tax stamp of each round

Are you talking "chalk" practice rounds or something? I'm talking the actual ammo that has the arming fuse (and everything).

 

[JTK1791]

Are you talking "chalk" practice rounds or something? I'm talking the actual ammo that has the arming fuse (and everything).

"Bomb tech did confirm that all rounds that are disassembled for storage and transportation and assembled on the "Ready Line" and fired immediately are ok. It is the same as regulations with Tannerite."

From a conversation I had with someone that holds an FEL

Chalk rounds are not regulated as they don't carry more than a quarter ounce of explosive

 

[CountryGent]

Not if you treat it like tanerite, if assembled and used at the same location within the same day they were assembled you dont have to go through the registering and tax stamp of each round

Could you cite the relevant regulations and/or ruling on this? Thanks.

 

[JTK1791]

Could you cite the relevant regulations and/or ruling on this? Thanks.

Dug up what they were basing the opinion off of.

NAL. After further digging it may be a stretch, but if you have the capability to manufacture and use without transporting or storing it I could see where an argument could be made using this.

License or Permit Requirements

Mixing binary components together constitutes manufacturing explosives. Individuals or companies must obtain a federal explosives manufacturers license if they intend to engage in the business of manufacturing explosives for sale or distribution, or for their own business use (e.g., mixing for demonstration or testing purposes). Persons manufacturing explosives for their own personal, non-business use only (e.g., personal target practice) are not required to have a federal explosives license or permit under 27 CFR, Part 555. However, a federal explosives license or permit is required to receive or transport mixed binary explosives, such as transporting mixed exploding targets to a shooting range. Persons prohibited under 27 CFR Part 555.26 from possessing explosive materials may not possess mixed binary explosives such as exploding targets or flash powder.

Binary Explosives | Bureau of Alcohol, Tobacco, Firearms and Explosives

Binary explosives are pre-packaged products consisting of two separate components, usually an oxidizer like ammonium nitrate and a fuel such as aluminum or another metal. These components typically are not listed separately on the List of Explosive Materials and do not meet the definition of...

www.atf.gov

 

[User 1234]

Whether a federal (or state) explosives license is required is a different question than whether a DD, as defined by the NFA, is possessed.

26 USC 5485(f)Destructive device:

The term "destructive device" means (1) any explosive, incendiary, or poison gas (A) bomb, (B) grenade, (C) rocket having a propellent charge of more than four ounces, (D) missile having an explosive or incendiary charge of more than one-quarter ounce, (E) mine, or (F) similar device; (2) any type of weapon by whatever name known which will, or which may be readily converted to, expel a projectile by the action of an explosive or other propellant, the barrel or barrels of which have a bore of more than one-half inch in diameter, except a shotgun orshotgun shell which the Secretary finds is generally recognized as particularly suitable for sporting purposes; and (3) any combination of parts either designed or intended for use in converting any device into a destructive device as defined in subparagraphs (1) and (2) and from which a destructive device may be readily assembled. The term "destructive device" shall not include any device which is neither designed nor redesigned for use as a weapon; any device, although originally designed for use as a weapon, which is redesigned for use as a signaling, pyrotechnic, line throwing, safety, or similar device; surplus ordnance sold, loaned, or given by the Secretary of the Army pursuant to the provisions of section 7684(2), 7685, or 7686 of title 10, United States Code; or any other device which the Secretary finds is not likely to be used as a weapon, or is an antique or is a rifle which the owner intends to use solely for sporting purposes.

 

[Nwcid]

Lots of interesting stuff for me to look though. I appreciate it and I have been doing some other looking online.

It looks like I will probably have to do the Title 1 and Form 1 version as non of the NFA dealers around me are licensed for DD.

 

[CountryGent]

it may be a stretch

Oh yah.

Whether a federal (or state) explosives license is required is a different question than whether a DD, as defined by the NFA, is possessed.

Exactly.