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Class 3 / NFA Dealers in Longmont, CO

3 of the 7 gun stores and hunting shops we list in Longmont have Class 3 / NFA.

Google's category and hours fields have no way to flag a Class 3 Special Occupational Tax license — the federal designation that lets a dealer sell suppressors, short-barreled rifles, and other NFA items — so it disappears into the same generic 'gun store' pin as any shop that only carries standard firearms. Every store on this page has that status confirmed from its own website, FFL/SOT listing, or direct contact, not guessed from a review mentioning a suppressor in passing.

  1. Iron Ridge Arms Company

    1110 Delaware Ave, Longmont, CO 80501-6197

    FFL transfersGunsmithingUsed & consignmentNFA / Class 3Classes & CCW
  2. Dmg Arms, Llc

    37 S Main St, Longmont, CO 80501-6213

    thursday: 9:00am-6:00pm

    GunsmithingUsed & consignmentNFA / Class 3
  3. Phoenix Weaponry

    1822 Skyway Dr Unit P, Longmont, CO 80504

    NFA / Class 3Classes & CCW
Call ahead before driving out for an NFA item. Class 3 inventory (suppressors, SBRs, full-auto) turns over slowly and stock varies a lot store to store, and the ATF transfer itself can take months, so confirm what's in the case and ask about their current average wait time before you commit to buying there.

More in Longmont and Colorado

Class 3 / NFA Dealers near Longmont

Good to know

What is a Class 3 gun dealer?

It's a dealer holding a Special Occupational Tax (SOT) status on top of their federal firearms license, which lets them legally sell NFA-regulated items like suppressors, short-barreled rifles, and machine guns. Not every gun store carries this license, since it adds extra paperwork, fees, and ATF oversight.

How long does it take to get an NFA item like a suppressor?

After you pass the background check and the dealer submits your ATF transfer paperwork, approval has historically ranged from a few months to close to a year depending on ATF processing volume. The item stays in the dealer's safe under your name until the transfer clears, so you can't take it home the same day.