Everything to Finish Your AR-15 Lower Receiver — One Kit, One Order
An AR-15 lower build kit includes everything to finish a stripped or 80% lower in one purchase — stock, buffer tube assembly, full lower parts kit, and pistol grip, all from one brand. Kits are available from Magpul, Mission First Tactical, UTG, Bravo Company, Strike Industries, and B5 Systems, with more brands added regularly. Confirm the buffer tube spec (mil-spec or commercial) before ordering.
Lower Build Kits
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Magpul MOE Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Black
Original price was: $159.95.$132.95Current price is: $132.95. -
Magpul MOE Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Flat Dark Earth FDE
Original price was: $159.95.$132.95Current price is: $132.95. -
Magpul MOE Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Olive Drab OD Green
Original price was: $159.95.$132.95Current price is: $132.95. -
Magpul CTR Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Black
Original price was: $169.95.$149.95Current price is: $149.95. -
Magpul CTR Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Flat Dark Earth FDE
Original price was: $159.95.$149.95Current price is: $149.95. -
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Magpul MOE SL-K Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Black
Original price was: $159.95.$132.95Current price is: $132.95. -
Magpul MOE SL Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Black
Original price was: $159.95.$149.95Current price is: $149.95. -
Magpul CTR Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Olive Drab OD Green
Original price was: $159.95.$149.95Current price is: $149.95. -
Magpul ACS Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Black
Original price was: $192.95.$177.95Current price is: $177.95. -
Magpul ACS Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Flat Dark Earth FDE
Original price was: $192.95.$177.95Current price is: $177.95. -
Magpul STR Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Black
Original price was: $189.95.$167.95Current price is: $167.95. -
Magpul ACS-L Lower Build Kit ACS-L Stock Lower Parts Kit Stock Components MOE Grip – Black
Original price was: $189.95.$167.95Current price is: $167.95. -
Magpul STR Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Flat Dark Earth FDE
Original price was: $189.99.$167.95Current price is: $167.95. -
Magpul STR Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Olive Drab OD Green
Original price was: $209.99.$167.95Current price is: $167.95. -
Magpul MOE SL Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Flat Dark Earth FDE
Original price was: $159.95.$149.95Current price is: $149.95. -
Magpul ACS Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Olive Drab OD Green
Original price was: $192.95.$177.95Current price is: $177.95. -
Magpul MOE SL-S Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Black
Original price was: $189.95.$167.95Current price is: $167.95. -
Magpul MOE SL-K Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Olive Drab OD Green
Original price was: $159.95.$132.95Current price is: $132.95. -
Magpul MOE SL-K Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Flat Dark Earth FDE
Original price was: $147.95.$132.95Current price is: $132.95. -
Magpul ACS-L Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Flat Dark Earth FDE
Original price was: $189.95.$167.95Current price is: $167.95. -
Magpul MOE SL-S Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Flat Dark Earth FDE
Original price was: $189.99.$167.95Current price is: $167.95. -
Magpul MOE SL Lower Build Kit Stock Lower Parts Kit Stock Hardware MOE Grip – Olive Drab OD Green
Original price was: $159.95.$149.95Current price is: $149.95.
