MAC 5K Pistol 9mm Franklin Binary Trigger 30+1

Description

The MAC 5K Pistol 9mm Franklin Binary Trigger 30+1 is a compact, roller-delayed blowback handgun built to HK-style specs. It ships with a Franklin Armory binary trigger and a 30-round magazine, giving you rapid, controlled fire in a PDW-sized package.

Manufacturer	MAC (Masterpiece Arms Company)
Model	MAC 5K
Material	Steel receiver with lacquer finish, polymer grip (per manufacturer specs)
Compatibility	HK-style claw-mount optics, 1/2-28 threaded muzzle devices
Finish	Gloss lacquer on receiver, matte black on barrel
Weight	Approximately 4.8 lbs (unloaded, per manufacturer specs)
Condition	New

Key Features

• Franklin Armory Binary Trigger – WHY IT MATTERS: This drop-in trigger delivers one round on the pull and one on the reset, effectively doubling your cyclic rate without modifying the sear or receiver.
• Roller-Delayed Blowback Operation – WHY IT MATTERS: The roller-delayed system reduces felt recoil and keeps the bolt closed until chamber pressure drops, improving reliability with high-pressure 9mm loads.
• Threaded Barrel (1/2-28 TPI) – WHY IT MATTERS: You can mount a suppressor, compensator, or flash hider directly to the 5.2-inch barrel without an adapter, keeping the profile compact.
• Optics-Ready with HK Claw Mount – WHY IT MATTERS: The receiver is pre-drilled and slotted for standard HK claw-style optics rails, letting you mount a red dot or reflex sight without gunsmithing.
• 30+1 Round Capacity – WHY IT MATTERS: The included 30-round magazine gives you firepower for range drills or defensive use, with one in the chamber ready to go.

Who It’s For

This pistol is built for shooters who want a compact, high-capacity 9mm with binary trigger capability. It suits competitive shooters in outlaw or binary divisions, home defense users looking for rapid follow-up shots, and collectors who appreciate the MP5K form factor with modern trigger tech.

Pros / Cons

• Pros: Binary trigger is pre-installed and tuned; roller-delayed action smooths recoil; lacquer finish resists corrosion; threaded barrel accepts standard suppressors; 30-round magazine included.
• Cons: The binary trigger requires practice to control on reset; the lacquer finish can show wear faster than hard-coat anodizing; no iron sights included – you’ll need to add optics or aftermarket sights.

Comparison

Feature	MAC 5K Pistol	Zev Technologies OZ9	Agency Arms Syndicate
Action	Roller-delayed blowback	Striker-fired	Striker-fired
Trigger	Franklin Binary	Zev Pro (single-action)	Agency Arms (single-action)
Barrel Length	5.2 in	4.5 in	5.0 in
Capacity	30+1	17+1	17+1
Optics Mount	HK claw-mount	RMR-cut slide	RMR-cut slide
Price (approx)	$1,715.99	$1,999	$2,100

FAQ

Is the binary trigger legal in my state?

Binary triggers are restricted in some states (e.g., California, New Jersey, Washington). Check your local laws before ordering. The MAC 5K ships with the trigger installed, but you can remove it if needed.

Does it come with any magazines?

Yes, it includes one 30-round magazine. Extra 30-round magazines are available separately.

Can I use standard HK MP5 magazines?

Yes, the MAC 5K accepts standard MP5-style steel and polymer magazines. The included magazine is a 30-round MP5-pattern mag.

What optics fit the claw mount?

The HK claw-mount rail accepts most red dots with a Picatinny or Weaver base, such as Aimpoint Micro, Holosun 403/503 series, and Sig Romeo5. You will need a separate claw-mount rail (not included).

Is the barrel threaded for suppressors?

Yes, the barrel is threaded 1/2-28 TPI, which is the standard pitch for 9mm suppressors and muzzle devices.

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Last updated: April 2026