Made in the USA and 100% quality inspected by hand for proper function.
Constructed from certified USA made chrome silicon spring wire
Heat treated, stress relieved
Provides consistent spring pressure for hundreds of thousands of cycles (estimated 750,000+)
Greater resistance to heat & high stress cyclic rates
Improves operation, long-lasting performance
Consistent pressure reduces bolt bounce
Significantly reduces the perceived "twang" noise which is common during firing
NOTE: Our Chrome Silicon Recoil Springs are packaged with an anti-corrosion compound which can appear reddish/brown or orange. You do not need to remove it but if you wish to, apply heavy oil and wipe clean.
This item is for ADJUSTABLE length M4 style buttstocks.
US SHIPPING ONLY
NOTE: CERTAIN SHIPPING RESTRICTIONS APPLY WITHIN THE USA. CLICK FOR DETAILS.