AR G3/91 Machined Lower - PTR A3S/GI/51/K3P/32 - Full Kit

PRICING AND DESIGN NOT FINALIZED, ETA FOR PRE-ORDER IS 5/30, ETA FOR SHIPPING IS LATE-JUNE. WE WILL ONLY SELL THIS AS A COMPLETE KIT DUE TO THE COMPLEXITY OF INSTALL AND CUSTOM PARTS REQUIRED.

We are now offering the AR G3/91 Lower fully machined and ready for super safe action! This kit includes:

• AR G3/91 Lower

  • CNC Billet machined from 7075-T6 Aluminum

  • Type III Hardcoat Anodized - Black

  • Markings laser engraved for SEMI - SUPER - SAFE positions

  • This fits PTR G3/91 clones, including A3S, A3SK, GI, GIR, GIRK, PDWR, 51P, K3P, and may fit PTR 32 models (TBD). Please note: We do not support Century/CETME C308 models, but we may support the CA-3 as it’s made by PTR (TBD).

• Custom Hammer - S7 Tool Steel, Black Phosphate, AR-15 Mil-Spec Fitment

• Custom Ejector Lever Nut/Bushing (4140 Steel) and hardware

• AS Designs Super Safety - CPM-10V Kit (Curved Trigger)

• Mil-spec FCG (disconnector and springs)

• Anti-walk Pins

• AR Grip (Mil-spec included in price, we will offer upgrade options when we are nearing shipping)

• Slip Trip and Slip Trip Guide - 7075-T6 Aluminum - Type III Hardcoat Anodized Black

• TPU Buffer for Recoil Spring

• Test fit and fired for 10 semi rounds and 30 rounds super safe on our A3S

You don’t need to add anything, this lower comes fully assembled with all parts. You will simply add the lower onto your upper and pin the new lower on and enjoy a super safe G3/91! Note: We cannot guarantee perfect fitment to every single host, tolerance stacking is always a concern, but we have done everything possible to ensure proper fitment.

We strongly recommend using anti-walk pins (NOT anti-rotation).

We currently specialize these lowers for use with the Hoffman Tactical Super Safety. If you plan to not use the Super Safety and just use an upgraded AR trigger (i.e. Geissele or similar) with your G3/91, it should work fine for that purpose as well, but we do not guarantee fitment with the custom hammer used.

We do not ship to the following states: CA, CO, CT, DE, FL, HI, IL, MA, MD, MN, NJ, NY, and RI.

The AR G3 was created by s3igu2 (with our support) and his approval was given for our product. Please visit his Twitter for updates, other designs, and to support his work: https://x.com/s3igu2

Credit also goes to UberPoor for his original work on the ARMP5 lower that inspired this product, please visit his Twitter for updates, other designs, and to support his work: https://x.com/UberPoor/