As of June 1st 2023, all pistols will be shipped with a bare “pistol buffer tube” in order to keep our customers clear of ATF rule 2021R-08F. Click here to read the rule.

The MMP-9 is our 9mm pistol offering. We built our MMP-9 to be an ideal short, personal defense weapon. The MMP-9 features a last round bolt hold open function, and an oversized magazine release. Our 9mm lower receivers utilize Glock pattern 9mm magazines, so purchasing spares is a breeze.

At the heart of our pistols, we use our M16 cut nitride bolt, matched with a fully nitrided Ballistic Advantage 11” carbine-length barrel. We then paired these components with our tight fitting receivers, and ultra-rigid 9” M-LOK rail system to provide a pistol that is up for any task.

Our MPP-GI trigger has micro polished contact surfaces, and a fitted disconnector. This combination gives you the 5lb weight of a typical duty trigger, and removes all of the gritty drag while breaking the shot. Our fitted disconnector gives a positive, short reset that is hard to miss!

We finish out our MMP-9’s with a four position SB Tactical SBA3 pistol brace, which is our choice for comfortable braced shooting.

Out of stock


Out of stock

Forged Lower:

• 7075-T6 Forged Aluminum

• Hard-Coat Anodized Mil 8625 Type 3 Class 2 – Matte Black

• Upper Receiver Tension Screw with nylon tip to remove any slack between lower and upper receiver.

• Functional bolt hold-open mechanism

• Oversized magazine release

• Detent Set Screw for Rear Take-Down Pin (Captures spring that is normally held in by the End Plate.)

• Bolt Catch Screw (Used in place of the Bolt Catch roll pin)

• Custombilt MPP Trigger: (Micro Polished Performance) GI Trigger

• Custombilt Enhanced Trigger Guard

• 6-Position Mil-Spec Buffer Tube, Carbine Buffer, Stainless Steel Spring

• Magpul MOE Grip

• SB Tactical SBA3 Stabilizing Brace

• Mil-Spec Safety Selector

• Magpul 30 Round PMAG®

Forged Upper:

• 7075-T6 Forged Aluminum

• T-Marked Flat-Top with Picatinny Rails

• Hard-Coat Anodized Mil 8625 Type 3 Class 2 – Matte Black

• Mil-Spec Charging Handle


• Custombilt 9” MLOK handguard,Hard-Coat Anodized Mil 8625 Type 3 Class 2 – Matte Black

Barrel (1:10 twist)

• 11””

• 4150 Chrome Moly Vanadium

• Nitride/QPQ Finish

• Thread: 1/2×28

• A2 Flash Hider

• Front Sight Block

Custombilt M16 Cut Bolt:

• Nitride Coated

• Laser Engraved Custombilt Logo

• HPT – High Pressure Tested

• MPI – Magnetic Particle Inspected

• 8620 Bolt group

• 416 stainless firing pin