The LBE Unlimited AR Essentials Kit is the perfect companion for your next AR build or for maintaining your favorite firearm. Designed with precision and reliability in mind this kit includes all the critical components such as a bolt catch plunger bolt catch spring bolt catch roll pin buffer retainer buffer retainer spring disconnector spring hammer spring trigger spring and hammer pin. Made in the USA this kit ensures high-quality craftsmanship and durability making it an essential addition to your toolkit. Whether you're assembling a new build or performing routine maintenance the LBE Unlimited AR Essentials Kit has you covered.