If you want your rifle to keep running smoothly, pick up this AR-15 Preventative Maintenance Kit and replace some of the parts that receive the most wear. We suggest at around 2,500 rounds, replace the ejector spring, the extractor spring, the extractor spring insert, bolt gas rings, the ejector spring pin and depending on the caliber, the extractor and extractor o-ring. These are all in Kit PM1.
At around 5,000 rounds, change the same parts again and also change out the extractor cartridge, extractor pin and ejector, which are all found in (Kit PM2). All parts are made in the USA.
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