Fits all poly frames pistols and carbines (spring only, one unit per price listed)
Small Stainless Steel Compression Spring. One for one drop in spring to reduce trigger pull on pistols and carbines. If you have modified your sear, sear well or firing pin, this may render the gun unsafe. It could go full auto or fire when dropped. Recommend you test fire with 2 rounds in magazine.
USE AT YOUR OWN RISK, no warranty expressed or implied.