The Auto-Ordnance M1 Carbine SBR is a .30 Carbine short-barreled rifle with a 12-inch threaded barrel and a 15-round magazine (brand part no. AOM230). Auto-Ordnance, part of the Kahr Firearms Group, kept the walnut stock and walnut handguard of the WWII design and added M-LOK slots along the underside of the forearm. The barrel is threaded 1/2-28 at the muzzle, so a suppressor or compensator goes straight on without a gunsmith. At 30 inches overall and 4.75 pounds, it is noticeably handier than a full-length carbine. Collectors who want period looks and shooters who want a compact, suppressor-ready .30 Carbine will both find a lot to like here.

Key Specifications

• The chambering is .30 Carbine, the light, low-recoil cartridge the M1 Carbine was designed around.
• Barrel length is 12 inches, which is what keeps the rifle this compact.
• The muzzle is threaded 1/2-28, a common pattern for suppressors and compensators.
• Overall length is 30 inches, short enough to store and move with easily.
• Weight is 4.75 pounds without a magazine, light for a rifle with walnut furniture.
• The stock and handguard are walnut, keeping the look of the original wartime carbine.
• The forearm carries M-LOK slots on the underside, giving a place for a light or sling mount.
• Sights are a blade front and flip-style rear, the simple, familiar M1 Carbine arrangement.
• This model ships with a 15-round magazine, the higher of the two factory capacities.
• The action is semi-automatic, firing one round per trigger pull.

Frequently Asked Questions

Do I need ATF approval to buy this? No. As of October 9, 2026, ATF no longer requires Form 4 approval, registration or a tax stamp for short-barreled rifles. It transfers on a Form 4473 with a background check through a Class 3 (SOT) dealer. State and local laws still apply. Taking an SBR across state lines still requires an approved ATF Form 5320.20.

Can I mount a suppressor directly? Yes. The 12-inch barrel has a standard 1/2-28 threaded muzzle, which accepts a suppressor or compensator in that thread pattern.

Is there a 10-round version? Yes. Auto-Ordnance builds the same M1 Carbine SBR with a 10-round magazine under its own part number; this one ships with the 15-round magazine.

Buy the Auto-Ordnance M1 Carbine SBR .30 Carbine, 12-Inch, 15-Round

As of October 9, 2026, this short-barreled rifle transfers on a Form 4473 with a background check at your Class 3 (SOT) dealer, with no Form 4 or tax stamp; state and local laws still apply. A walnut-stocked M1 with a threaded 12-inch barrel is an easy rifle to love at the range. Order through Kahr Arms‘s short-barreled rifles lineup and our Lubbock, Texas team will handle the transfer.