DPMS AR-15 Weld Spring One Size. Specifications for DPMS AR-15 Weld Spring: Manufacturer: DPMS Color: Black Gun Make: AR Platform Gun Model: AR-15 Package Contents: DPMS AR-15 Weld Spring What firearm models does the manufacturer say DPMS AR-15 Weld Spring is compatible with? The manufacturer suggests that DPMS AR-15 Weld Spring is compatible with AR-15DPMS DP1182: AR-15 Weld Spring One Size