AR-15 Kp-15 Complete Lower Receivers Mil-Spec Polymer - AR-15 Kp-15 Complete Lower Receiver Mil-Spec Polymer Black

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KE Arms Ar-15 Kp-15 Complete Lower Receivers Mil-Spec Polymer - Ar-15 Kp-15 Complete Lower Receiver Mil-Spec Polymer Blk - Lower Receiver for AR-15 - view 1
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KE Arms

Overview

The KE Arms KP-15 Complete Lower Receiver is a fully assembled, mil-spec polymer lower designed for the AR-15 platform. It supports a multi-caliber configuration, allowing builders to easily customize their setups without being restricted to a single cartridge. This polymer lower is lightweight and durable, making it a practical choice for builds that commonly utilize a mid-length gas system.

Specifications

MPN1-61-01-002
PlatformAR-15
StylePolymer
AssemblyComplete
ColorBlack
CaliberMulti
MaterialPolymer

Available Merchants(4)

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AT3 Tactical logo
AT3 Tactical
Shipping TBD
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$179.96
BattleHawk Armory logo
BattleHawk Armory
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$179.96
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Brownells
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$199.99
Sportsmans Outdoor Superstore logo
Sportsmans Outdoor Superstore
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$219.99

October 2026 on GunPartPicker

KE Arms AR-15 Kp-15 Complete Lower Receivers Mil-Spec Polymer - AR-15 Kp-15 Complete Lower Receiver Mil-Spec Polymer Black ranked #148 of the 588 lower receivers builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #169 of the 1,222 lower receivers builders have added. Builds with this lower receiver are mostly chambered in 5.56 NATO (77%), split between carbine-length (38%) and mid-length (38%) gas systems, and nearly all AR-15.

It was hard to find in October 2026, in stock on only 8 of the 14 days we checked, and today only AT3 Tactical has it in stock. Prices barely moved in October 2026, holding around $179.96, with no real sale all month. Buying today, the lowest price is $179.96 at AT3 Tactical, which matches the best price we saw in October.

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Frequently Built With

The part most often added in each category by the builds that include this one

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Caliber

76.9%
5.56 NATO76.9%
.223 Remington7.7%
.223 Wylde7.7%
6.8 SPC II7.7%

Gas System

37.5%
Carbine37.5%
Mid-Length37.5%
Rifle25%

Builds Featuring This Part

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Builds in the community that include the Ar-15 Kp-15 Complete Lower Receivers Mil-Spec Polymer - Ar-15 Kp-15 Complete Lower Receiver Mil-Spec Polymer Blk

BuildPartsTotal
My multi build build
My multi build
13$1596.82

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