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High quality components and precise manufacturing make ACE parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on.

The bolt rebuild kit provides everything you need to rebuild your AR15 bolt.

The field repair kit was designed to provide the most commonly worn or broken parts in your semi auto AR15. It’s a great addition to your range bag! All parts are high quality.

Double Star uses only the best parts to make their lower parts kits. The fire control group is made from mil spec heat treated 8620 steel and finished on all touch points for a smooth, crisp trigger pull with minimal creep or drag. This AR15 lower parts kit uses high quality American made parts to ensure performance in your AR15.

Sometimes parts go missing or need replacement. Don’t be caught unprepared with a useless rifle and stand ready with the Double Star Oops! Kit. The kit fits easily in your range bag, backpack, and even in your pocket. Never say Oops! with the Double Star Replacement Kit. Parts included:4-Takedown detent springs4-takedown detents2- buffer detents2- buffer detent springs2- firing pin retaining pins2- extractor springs with bumper pads2- selector springs/ ejector springs2- selector detents

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