First Look: Amend2 S300 Modular Pistol Frame for P320 FCU

by
posted on January 20, 2020
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
amend2-s300-modular-pistol-frame-f.jpg

When the SIG Sauer P320 first released, it was more than just another polymer-frame handgun. The innovative element found in the design of the P320 was in its Fire Control Unit that sat inside the slide. This constituted the serialized component in the firearm, allowing owners to swap out slides and grip frames to build their perfect pistol configuration. Now, that concept has been taken a step further by the team at Amend2 Magazines, thanks to their S300 Modular Pistol Frame.

Going beyond even SIG's modular components, the Amend2 S300 Modular Pistol Frame allows users to place their P320 fire-control unit inside the S300 frame. The frame is designed to accept SIG P365 pistol magazines, enabling the frame to be smaller and thinner than comparable sub-compact P320 pistol frames. However, the top of the grip frame is still compatible with P320 pistol slides.

"The P320 has proven itself to be a reliable and popular pistol,” said Matt Bellitti, Amend2 General Manager. “Amend2’s S300 frame will allow P320 owners a whole new level of concealability. Now one handgun can serve an even wider range of roles.”

Since the S300 Modular Pistol Frame doesn't include a P320 fire-control unit, the component can ship straight to consumers, enabling them to reconfigure their go-to concealed-carry gun without having to purchase an entirely new frame. The grip frame also allows for a wide range of customization options, and the ability to attach a P320 slide opens up the possibility for sights and optics to be mounted on compatible units.

Each Amend2 S300 is made from a reinforced nylon polymer, which allows it to easily withstand the stresses and rigors of firing and daily carry. Amen2 plans to roll out the frames in mid-2020 at a suggested retail price of $49.99. For more information on this new design, visit amend2mags.com.

Latest

W2042 AFF 2007
W2042 AFF 2007

Semi-Automatic Bans Are Unconstitutional

If the logical application of the rule of law means anything in this constitutional republic, bans on massively popular semi-automatic firearms will be found unconstitutional.

New Handloading Helpers: The Latest Reloading Gear From RCBS

When Hodgdon Powder Company took over RCBS in 2024, company leaders said positive change was coming. By looking at the new products RCBS introduced in 2026, it’s clear they were right.

North-South Skirmish Association to Hold 153rd National Competition in May

At the North-South Skirmish Association's 153rd National Competition, members will compete in live-fire matches with original and reproduction muskets, carbines, revolvers, mortars and cannons.

Review: Heckler & Koch G36 .22 LR

What was once a service rifle for a brave new world all those wasted years ago is now running free as a rimfire option for armed citizens.

Steyr's At Series Handguns: All-Metal & Modular

Designed as a collaboration between Steyr Arms and Arex Defense, the At series of handguns are built on metal frames and have several user-customizable features not seen in other offerings.

The Armed Citizen® March 16, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Interests



Get the best of American Rifleman delivered to your inbox.