WE OFFER SUPER FAST & FREE 50 STATE SHIPPING & HAVE EXCELLENT FEEDBACK !!!Thanks for visiting ROCK MOUNTAIN TACTICAL !We are Authorized Full Line dealers for several high quality brands like: Magpul, Ajax Grips, Viking Tactics, ODIN Works, GG&G, Eberlestock, Emerson Knives, Savvy Sniper Slings, Wilson Combat & many other excellent name brands. We have 1000s of items in stock: all types of parts and other gear.Please Visit our eBay Store at Rock Mountain Tactical – since 2006. On Time. On Target. NEVER QUIT !!! SPRINCO USA TACTICAL SPRING’s SUPER HIGH QUALITY, PROFESSIONAL RECOIL SPRINGS: Listing is for: (1) Sprinco Tactical Springs #25016 – 16# RED FULL Coded Recoil Spring for the – 1911 Full Size Pistols- Includes (1) 16# Chrome Silicon, Moly Plated, Cryogenically Processed Recoil Spring.The Best of the Best – Right Here – SPRINCO TACTICAL RECOIL SPRINGSBE ADVISED: PLEASE, PLEASE, PLEASE contact SPRINCO for 100% up-to-date technical & true information regardingyour application before ordering.BE ADVISED: Rock Mountain Tactical will not reimburse you for shipping charges if you order the incorrectpart and need to have it exchanged!!! – These recoil springs are drop-in and have been finely tuned to make the pistol highly reliable and extremely functional increasing accuracy, speed of second (and subsequent) shot return to point of aim. – Extremely well designed and engineered using the highest quality components and finished with true attention to detail.- NOTES From the factory: Chrome Silicon Wirestock Heat Treated, Stress Relieved, and Cryogenic Processed post winding Impregnation / Plating with Re-Micronized Molybdenum Disulfide Formulation Color-Coded for Quick Field I.D / Packaged in Hard Plastic Hang Hole Tubes Most Accurate Adherence to Actual Represented Load Tolerances (Weights) of any springs in the Industry. Absolutely outrageous extended duty cycle springs.Sprinco’s recoil springs are manufactured from Chrome Silicon. Chromium-silicon alloy is noted for it’s hardness and superior performance at extremely high stresses. Because of it’s heat resistance and hardness, the alloy can be used in valve springs and automatic transmissions at temperatures over 275F. Chrome-silicon was originally developed for recoil springs in anti-aircraft guns where high resistance to shock loads and long life is needed. The endurance limit of Chrome-silicon either before or after shot peening equals that of carbon steel in the same condition. At a given stress value, it can be used at a temperature 100 degrees Farenheight higher than Chromium-vanadium and higher hardness without breaking. This alloy provides excellent service for applications in the 5,000 to 50,000 cycle ranges. Available in a sensible range of popular weights, professional shooters and manufacturers who have tested our springs attest to the fact that our springs meet and maintain spec performance better than any other recoil spring on the market today.1911 PERFORMANCE TIP: Many of our professional shooters have achieved impressive results by combining our Chrome Silicon Recoil Springs lighter than “normal” weights with the Sprinco Recoil Management System. The net result is reduced muzzle dip when the slide returns to battery, hence, improved rapid-fire control! We recommend running a 2 to 6 pound lighter load spring than the “factory” recoil spring. Please contact Sprinco’s Technical Support for suggestions with your particular gun, loads and applications.ANY QUESTIONS? – FEEL FREE TO MESSAGE or EMAIL US !!!Thank you for looking!!!