Armaspec Stealth Buffer for AR15

Armaspec Stealth(TM) Recoil Spring - SRS(TM)- AR15The Armaspec Stealth Recoil Spring(TM) SRS(TM) is an upgraded multi-staged, self-contained, drop-in replacement for your standard buffer and spring. The SRS(TM) is specially designed to keep the buffer spring off of the inner wall of the buffer tube to provide a smooth, quiet operation. It was enhanced with a second stage that helps reduce the felt recoil significantly.Features:Drop-in replacement for standard buffer and springReduce felt recoilKeep the buffer spring from rubbing against the inner wall of the buffer tubeBuffer mass is designed to stay under constant tension against the bolt carrierRubber O-ring on the head of the buffer mass prevents metal on metal contactMade in the U.S.A.Specs: Overall length:Length: 7.18" Equivalent Weight:C: 3.3 oz.H: 3.8 oz.H2: 4.7 oz.H3: 5.6 oz.BB: 5.7 oz.9MM: 6.4 oz. Actual Wight: - Complete System (new version with stainless steel weight):C: 6.2 oz.H: 6.6 oz.H2: 7.4 oz.H3: 8.0 oz.BB: 7.5 oz.9MM: 9.5 oz.Compatibility:AR-15 with carbine-length buffer tubeSpecial Notes:The SRS(TM) comes with Red LOCTITE on the front metal stop and Blue LOCTITE for the bottom bumper, when reassembling we recommend reapplying LOCTITE. The SRS(TM) can be installed with or without a buffer retainer.The polymer bumper goes towards the rear of the firearm and the weight mass with the o-ring goes towards the bolt carrier.Most bolt carriers have a rear opening of over .60a ^2, there are a couple of bolt carriers in the market place that have a rear opening of under .60a ^2 and will not function with the SRS.9mm Bolt Carriers ONLY: For proper function of the SRS-9 in your 9mm rifle or pistol, the extra weight on the back of the bolt carrier needs to be removed. It is held in with a spring pin.