Cross Armory CRPP Pin Pal Mil-Spec 223 Rem/5.56x45mm NATO AR15,M4 4140 Steel

The Cross Armory CRPP Pin Pal is a mil-spec replacement pin engineered for AR15 and M4 platforms chambered in 223 Rem/5.56x45mm NATO. Built from 4140 steel for durability and reliability, this component is essential for shooters maintaining their rifles. Whether you're in Daly City or across the Bay Area, understanding your local regulations matters—review California firearm laws before making modifications.

4140 Steel Construction and Mil-Spec Design

The Pin Pal uses 4140 steel, a material standard in military-grade AR components. This steel offers the hardness and wear resistance needed for reliable pin function across thousands of rounds. Direct replacement design means no fitting or modification required. If you're new to AR maintenance, our California gun-buyer FAQ covers common questions about parts compatibility and upkeep. Pin replacement is straightforward and keeps your rifle functioning as intended. TacticCAL is your local gun store in the Bay Area.

Frequently asked questions

What platforms does the CRPP Pin Pal fit?

This mil-spec pin is designed for AR15 and M4 platforms chambered in 223 Rem/5.56x45mm NATO. It functions as a direct replacement for standard mil-spec pins on these rifle types.

Is this pin a direct drop-in replacement?

Yes. The CRPP Pin Pal is mil-spec dimensioned, meaning it installs without fitting or modification on compatible AR15 and M4 receivers. No gunsmithing required.

Where can I ship an online gun order near San Jose?

TacticCAL Gun Store in Sunnyvale receives online firearm orders for buyers throughout the South Bay, including San Jose, Santa Clara, and the surrounding Bay Area. Looking for gun shop San Jose? Visit us in Sunnyvale.