ProMag EAA MKA 1923 12ga 10 Round Shotgun Magazine Black 1 Pack MKA 02. The spring is made from heat treated Chrome-silicon wire. The magazine is designed for the use of 12-gauge 2-3/4 inch shells. Specifications for ProMag EAA MKA 1923 12ga 10 Round Shotgun Magazine: Manufacturer: ProMag Color: Black Fabric/Material: Polymer Magazine Capacity: 10 Round Gauge: 12 Gun Model: EAA MKA 1923 Condition: New Magazine Type: Shotgun ProMag MKA 1923 10-Round 12 gauge Shotgun Magazine Fits Akdal MKA 1923 12 Gauge 2-3/4" shotgun Magazine body constructed of a proprietary DuPont Zytel based polymer Injection molded magazine follower Magazine spring formed from heat treated chrome silicone wire Package Contents: ProMag MKA 1923 10-Round 12 gauge Shotgun Magazine What firearm models does the manufacturer say ProMag EAA MKA 1923 12ga 10 Round Shotgun Magazine is compatible with? The manufacturer suggests that ProMag EAA MKA 1923 12ga 10 Round Shotgun Magazine is compatible with EAA MKA 1923ProMag SSGMP1208: EAA MKA 1923 12ga 10 Round Shotgun Magazine Black 1 Pack