Mac Military Armament Corp 2 3 Gun Semi Auto Shotguns 2
Pros & cons
What works
- Inertia-driven action cycles a wide range of shell loads
- Benelli M2-pattern compatibility with aftermarket parts
- Oversized controls for fast manipulation
- Significantly less expensive than premium inertia shotguns
Trade-offs
- 3+1 tube capacity is lower than magazine-fed competition shotguns
- Polymer stock and finish are basic compared to premium models
- California feature compliance should be confirmed before ordering
Specs at a glance
About this product
The Military Armament Corp MAC 2 Tactical 3-Gun is an inertia-driven, semi-automatic 12-gauge shotgun built for competition and general tactical or home-defense use, and this configuration is priced at $423. As a firearm, it ships to a licensed FFL dealer for pickup only.
What is the MAC 2 3-Gun good for?
Shoppers searching mac 3 gun or mac semi are typically looking for a budget-friendly alternative to premium inertia shotguns like the Benelli M2, built for 3-gun competition, clays, or a fast-cycling home-defense shotgun. The inertia system MAC uses is prized in the competition world because it cycles a wide range of shell loads — light target loads through heavier defensive loads — without adjusting anything on the gun, and it tends to stay cleaner between cleanings than a gas-operated action.
What features does the MAC 2 3-Gun include?
This model has a 21-inch vent-rib barrel fitted with the Benelli/Mobil-pattern choke tube system, a fiber-optic front sight for fast target acquisition, and a 3-inch chamber that runs standard through 3-inch magnum 12-gauge shells. It carries 3+1 in the tube-fed magazine, comes with a lightweight polymer stock and a durable black anodized receiver, and the controls — bolt release, safety, loading gate — are all built oversized for fast manipulation under a timer or under stress. Because MAC built this shotgun around Benelli M2 pattern dimensions, it is also compatible with a wide range of aftermarket M2 furniture, sights, and accessories if you want to customize it later.
Is a semi-auto shotgun like this restricted in California?
California's assault weapons law targets certain semi-automatic shotguns based on features like a detachable magazine, pistol grip, or folding or telescoping stock, rather than banning semi-auto shotguns outright. A tube-fed 3+1 shotgun like this one is a different animal than a detachable-box-magazine shotgun, but exact compliance still comes down to this shotgun's specific features and current state law, so confirm with your FFL before you order rather than assuming based on general rules of thumb.
Who makes the MAC 2, and is it a new company?
Military Armament Corporation is a revived brand name building modern firearms designed to compete directly with established premium shotgun and rifle makers on price without cutting corners on the core mechanism. The 3-Gun designation on this model signals it is purpose-built for the sport, with features — the enlarged loading gate, oversized bolt release, fiber-optic sight — chosen specifically because they matter under a shot-timer, not just for looks. If you have shot a Benelli M2 in competition and liked the layout but not the price, this is built to feel familiar in your hands.
Because the inertia system relies on the shell's own recoil energy to cycle rather than tapping burning gas from the barrel, there is also less fouling to clean out of the action after a day at the range compared to a gas-operated semi-auto shotgun — a small but real maintenance advantage for a gun likely to see high round counts in competition use.
Choke selection also matters for how this shotgun performs across a 3-gun stage that mixes close targets with longer ones; the included Benelli/Mobil-pattern chokes give you room to swap between a more open pattern for close, fast targets and a tighter choke for anything at extended range without buying a separate barrel.
Checkout runs through our secure checkout, and once your background check clears we will coordinate the transfer to your chosen FFL. If you want Benelli-pattern reliability and aftermarket compatibility without the Benelli price tag, the MAC 2 3-Gun is worth a serious look.
FFL transfer required
This item is a firearm and ships only to a licensed FFL dealer, never to a home address. At checkout, enter your preferred dealer as the shipping address, or leave it blank and we will assign a licensed dealer near you at no extra cost. You complete the background check and paperwork with the dealer when you pick up.
California buyers: handguns must be on the California roster for delivery to a California FFL, a Firearm Safety Certificate (FSC) and DROS are handled at the dealer, and the 10-day waiting period applies. Out-of-state buyers receive the firearm through their own local FFL under their state's rules.
Key attributes
| Transfer | Ships to your FFL dealer |
| Gauge | 12 gauge, 3 in chamber |
| Capacity | 3+1 rounds |
| Barrel Length | 21 in |
| Action | Semi-automatic, inertia-driven |
| Finish | Black anodized receiver, polymer stock |
Frequently asked questions
- What action does the MAC 2 use?
- An inertia-driven semi-automatic action, similar in principle to Benelli's system.
- What's the magazine capacity?
- 3+1 rounds, tube-fed.
- What chamber size does it accept?
- A 3-inch chamber, so it runs standard and magnum 12-gauge shells.
- Is it compatible with Benelli M2 accessories?
- Yes, MAC built the platform to Benelli M2 pattern dimensions.
- Does this ship to my house?
- No — as a firearm it ships to a licensed FFL for pickup only.