It comes with everything you need to get a gun up and running reliably and affordably. This standard lower parts kit from APOC Armory is a staple for all of my recent builds. Having all of the small parts you need compiled for you is just a tremendous help.īuying an affordable, high quality AR-15 Lower Parts Kit from a reputable AR 15 Parts source like Black Rifle Depot is a great way to save time and money as you work your way towards a complete or updated AR-15 lower receiver. From experience, I can say that trying to chase down all of the small parts, springs, and detents can be a time-consuming pain. The most common question we hear from new builders at Black Rifle Depot is “why do I need a lower parts kit?” Well, are you building up a stripped lower? Are you replacing old parts on your existing AR lower receiver? If you’re in either situation, you probably need a lower parts kit. That said, if you still have questions, please do not hesitate to contact us. However, if pressed on which we would select for our own builds, there are a few differences which we can go over here. While there are some differences, rest assured all of the AR 15 Lower Parts Kits we sell at Black Rifle Depot are some of the best on the market. Picking an AR 15 Lower Parts Kit? For what seems a somewhat inconsequential grouping of small parts, we get a lot of questions on what AR-15 Lower Parts Kit to select. The Best Lower Parts Kits Picking the Best AR-15 Lower Parts Kit from Black Rifle Depot