ProMag DRMA33 Drum Magazine for Sig P365/P365XL

The ProMag DRMA33 drum magazine is a drum-style feeding device intended to fit the Sig Sauer P365 and P365XL platforms. Its housing is molded from a proprietary DuPont Zytel-based polymer and incorporates steel components in the feed area for reliable engagement. The magazine follows common factory design points with a full-length steel internal insert and an injection-molded follower to manage cartridge alignment. Springs are formed from heat-treated stainless steel, and the assembly is listed as Made in USA.

Key Specifications

• The magazine is listed to fit Sig Sauer P365/P365XL.
• The drum housing is constructed from DuPont Zytel-based polymer.
• The magazine upper tower contains a full-length steel internal insert that is stamped and welded like the factory magazine.
• The magazine uses an injection-molded follower for consistent feeding.
• The magazine spring is formed from heat-treated stainless steel.
• The finish is listed as Black.
• The listed model designation is Standard (DRMA33).
• The product is noted as Made in USA.

This drum magazine offers a polymer-bodied alternative to factory magazines for P365-series pistols, with steel reinforcement where feeding reliability is critical. Its construction balances durability and weight for range use or extended-capacity needs, while the injection-molded follower and stainless-steel spring are intended to maintain consistent feeding under normal operating conditions.