This Auto Sear Replacement Spring is a one for one…

3861Works with both full and three round burst auto sears. Made in the USA Description Application: M16/AR-15/M4 Caliber: .223 / 5.56 Finish: Manganese Phosphate Weight: .88 oz You may also be interested in our AR-15 M16 M4 Auto Sear Installation Slave Pin designed and manufactured to be used over and over while eliminating damage to the lower receiver, Auto Sear or Auto Sear spring or bushing. ***NOTE: This part can be legally sold to retail consumers, dealers or manufacturers and are meant to be used as replacement parts for registered receiver weapons and post sample builds only. All NFA Rules Apply and Aegis Cerakote & Gunworks, LLC will not be held liable for any illegal use or misuse of this product nor will we provide any legal advice as to your city, county, or state regulations on possession of this product. ALL NFA RULES APPLY – This part will not convert your AR15 Semi-automatic to full auto function and attempting to do so without the proper license is a violation of Federal law!***