Flat wire 30-Round Magazine Springs from Sprinco! Store Your Shtf Go-To Mags Indefinitely To Full Capacity Without Spring Fatigue!

• Springs Cannot Be Over-Compressed Using Anti-Tilt Followers
• Improved Follower Support To Top 4 Rounds, But Easier To Load To Full Capacity
• Springs Do Not Buckle Like Round Wire Springs, Assuring Uniform Feed Rate
• Fits Most Mag Bodies And Anti-Tilt Followers Including USGI, Magpul, Lancer, Hexmag, Orlite, With Few Exceptions
• Exceptions - Brownells USGI Tan Followers, ETS Mags, Some HK Followers
• 17-7 Stainless Mil-Spec Wire Construction