LanTac AR-15 M-SPEC Field Repair Kit Features The LanTac USA M-SPEC Field Repair Kit is manufactured to the highest quality standards using correct materials heat treatments and finishes to meet up-to-date military specifications for AR-15 small parts. The 22-piece kit includes a bolt catch plunger spring and roll pin along with a bolt catch set screw compatible with LanTac Aero and other AR-15 lowers addressing one of the most commonly lost small parts on the platform. Two each of buffer retainers and springs takedown pin detents and springs pivot pin detents and springs trigger pins and safety selector detents and springs round out the kit covering nearly every small spring-loaded part prone to disappearing during a detailed strip. A 1/16th Allen key is included specifically for installing the bolt catch set screw. Because these parts frequently go missing or wear out during cleaning competition or hard training having a dedicated repair kit on hand saves a trip to the gunsmith or a frustrating search for a single replacement spring. At just 0.04 lbs the entire kit is compact enough to toss in a range bag or spare parts box without taking up meaningful space. LanTac backs this kit with a lifetime warranty and manufactures it in the USA to the same standards used across its other AR-15 components. For AR-15 owners who want spare small parts on hand before they re needed the LanTac M-SPEC Field Repair Kit is available for sale at GrabAGun. LanTac AR-15 M-SPEC Field Repair Kit Specifications Manufacturer: LanTac Model: M-SPEC Field Repair Kit Firearm Type: AR-15 Color: Black / Silver Number Of Pieces: 22 Weight: 0.04 lbs Available At: GrabAGun