Sprinco 30 Round AR-15 Magazine 17-7 SST Flat Wire Spring

Sprinco AR-15 magazine springs are made from high quality 17-7 stainless steel flat wire stock and are a drop in replacement to fix your old 30 round mags. Compatible with all 30 round magazine brands and followers, this flat wire magazine spring will function reliably for many years to come. Make your mags run like new with the Sprinco USA AR-15 30 round magazine spring.

Features:

• Compatible with all 30 round AR-15 magazine bodies
• Constructed from 17-7 stainless steel flat wire stock
• Heat treated for long term reliability and strength
• Keep mags fully loaded for long periods of time without loss of performance