Lower parts kits for your AR-15 or AR-10 build normally include parts such as the safety selector, pivot pins, springs, pins, and even occasionally will include parts such as your grip and trigger assembly. The lower parts kit (LPK) is one of the most important parts of any AR build. The LPK includes all the parts necessary to chamber a round, flip the safety, squeeze the trigger, and fire a round downrange using your AR-15 lower. When you pick out one of the AR15 Lower Parts we carry, for example, one of the Aero Precision AR15 Lower Parts, you’ll get precisely what you’re expecting. But we strive to provide more than just awesome products and super low prices. We appreciate that a lot of the equipment in our store calls for some amount of practical experience to properly evaluate and understand.
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AR AK Parts, AR Lower Parts, Gun Parts, Lower Parts Kits
CMMG AR-15 Lower Receiver Pin and Spring Kit
CMMG Lower Spring and Pin Kit provides all of the essential pin and springs needed to complete an AR-15 Lower Receiver. This kit is convenient for putting together a new…
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AR AK Parts, AR Lower Parts, Gun Parts, Lower Build Kits, Lower Parts Kits
Armaspec AR-15 Red Gun Builders Kit Stainless Lower Parts Kit
Tired of getting all those extra parts inside a mil-spec lower parts kit that you’re just not going to use? The AR-15 Stainless Lower Parts Kit from Armaspec is set…
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AR AK Parts, AR Lower Parts, Gun Parts, Lower Parts Kits, Small Lower Parts & Components
Tacfire AR-15 Lower Receiver Spring Kit 9 Piece
Tacfire AR-15 Lower Receiver Spring Kit 9 Piece
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AR AK Parts, AR Lower Parts, Gun Parts, Lower Parts Kits
Armaspec Superlight Gun Builders Kit AR-15 Lower Parts Kit Stainless Steel Red
Armaspec is excited to offer a Stainless Steel Gun Builders Lower Parts Kit. This particular kit is NOT a complete kit but a builders kit designed for individuals who prefer…
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AR AK Parts, AR Lower Parts, Gun Parts, Lower Parts Kits
Armaspec Lower Parts Kit Stainless LPK .223/5.56 ARM152-BLK
Armaspec Stainless Steel Lower Parts Kit LPK less Trigger Group & Grip for .223/5.56 gives you high quality, color customizable lower parts to complete your receiver without the pistol grip…
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AR AK Parts, AR Lower Parts, Gun Parts, Lower Parts Kits
Luth-AR .308 AR Builders Kit Lower Receiver Parts Kit Matte Black
Luth-AR is the name to trust when it comes to purchasing high quality parts and accessories for your AR platform firearms. Using high quality parts is the best way to…
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AR AK Parts, AR Lower Parts, Gun Parts, Lower Parts Kits
CMMG AR-15 Complete Lower Parts Kit Black 55CA6C5
CMMG AR-15 Complete Lower Parts Kit Black 55CA6C5
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AR AK Parts, AR Lower Parts, Gun Parts, Lower Parts Kits
Armaspec Superlight Gun Builders Kit AR-15 Lower Parts Kit Stainless Steel Black
 Armaspec is excited to offer a Stainless Steel Gun Builders Lower Parts Kit. This particular kit is NOT a complete kit but a builders kit designed for individuals who prefer…
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AR AK Parts, AR Lower Parts, Gun Parts, Lower Parts Kits
Armaspec AR-15 Gun Builder’s LPK without FCG and Grip Black
 Armaspec lets you have spare parts handy or get ready for your next build. Their kit is without the Fire Control Group (FCG) and Grip so you can get that…
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AR AK Parts, AR Lower Parts, Gun Parts, Lower Parts Kits
ARMASPEC AR 10 Builders Kit No Grip Or Trigger Stainless Steel Purple
ARMASPEC AR 10 Builders Kit No Grip Or Trigger Stainless Steel Purple
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AR AK Parts, AR Lower Parts, Gun Parts, Lower Parts Kits
CMC Triggers AR-15 Lower Parts Kit No Grip or Fire Control
CMC Triggers 81500 AR-15 lower parts No fire control group or pistol grip
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AR AK Parts, AR Lower Parts, Gun Parts, Lower Parts Kits
UTG AR-15 Lower Upgrade Kit, Matte Black TLT-TKS01
The UTG® AR15 Lower Upgrade Kit comes in matte black and it is a perfect upgrade for your AR-15 Rifle because it features ambidextrous 45/90 safety selector and extended magazine…
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AR AK Parts, AR Lower Parts, Gun Parts, Lower Parts Kits
Caldwell AR OOPS Kit Field Repair Kit for AR15
This kit includes replacement detents and springs for the AR-15 that are most commonly damaged or lost.
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AR AK Parts, AR Lower Parts, Gun Parts, Lower Parts Kits
Caldwell S&W M&P AR-15 Customizable Lower Parts Kit
When building a new AR-15, many builders opt to use upgraded pistol grips, fire control parts or drop in trigger systems, leaving them with unused parts. Caldwell recognizes the needs…
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