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What makes this stripped lower different? The answer is simple… the KE Arms KP-15 stripped lower receiver is a monolithic polymer AR-15 style lower receiver made from injection molded, 30% glass-filled nylon. Its unique design incorporates the buffer tube, pistol grip, trigger and a 13-inch (LOP) buttstock into the receiver as integral components. The result is an affordably priced, lightweight lower receiver.
The KE Arms KP-15 stripped lower receiver uses a carbine buffer and spring. The take down and pivot pins have built-in detents, which increases durability by eliminating the spring and detent holes. The buffer detent (should you choose to use it) is held in place with a 5/64” roll pin. The hammer pin area is wider for durability; standard AR-15 hammer pins can still be used, though the KE Arms longer hammer pin is recommended for customers preferring a flush pin for aesthetic reasons.
The safety selector spring and detent have been designed to load from the top, then the selector is slid over them. (Standard selectors can work but removing them can be particularly difficult. KE Arms recommends the use of their designated mil-spec selector or ambi selector to make removal easier. Follow the manufacturer’s assembly guide for further instructions.)
- Compatible with all Mil-Spec fire control groups
- Compatible with cassette style match triggers
- Flared magwell
- Available in black and flat dark earth
- MLOK Slots at rear of stock for sling attachment
- Pre-drilled in front for QD socket inserts
- Uses a standard bolt catch. Cannot accept the PDQ lever. The PDQ lever is exclusive to the WWSD complete rifle.
- Do NOT use anything other than standard carbine buffers and round springs or the JP SCSS in the KP-15.
WARNING!: This item is legally classified as a receiver. You Must be 21 years old to purchase this item and a resident of the same state your transferring dealer is licensed in.
Stripped Lowers Include
- Pivot and Take Down Pins
- KP-15 Selector Detent
- Buttplate
- 5/64" Roll Pin to Retain Buffer Detent
The KE Arms KP-15 is compatible with standard AR-15 uppers in calibers including .223/5.56mm NATO, .300 Blackout, 6.5mm Grendel and 6.8mm SPC. The lower receiver is also compatible with 9mm blowback systems, when used with a minimum buffer weight of 5.4oz (carbine). Failure to use a minimum buffer weight of 5.4oz can damage the lower.
CERAKOTE: If you intend to Cerakote your KP-15 the manufacturer recommends the bake should be done at low temperatures (
WARRANTY: The KE Arms KP-15 has a lifetime warranty for normal use. If the receiver breaks through misuse or neglect, KE Arms will replace it ONCE for $65.00.
NOTE: Not recommended for .458 SOCOM, .50 Beowulf or .50 BMG. Please contact KE Arms if you intend to register your KP-15 lower receiver as an NFA weapon.
Color : Black
Make Model Fit : AR-15.Universal
Cartridge : 5.56x45 NATO
Finish : Matte
Receiver Style : Stripped
Brownells sku: 100036999
MPN#: 1-61-01-001
UPC#: 050806113589

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Comments (9)

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I know I’m late AF to the party. Sooo. They got 50 BMG SMAR uppers now?!? Put a thumb in it would b my advice. I’m sure they meant 450 BM.

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08/07/23: If you have body armor this is a good size complete lower the fixed stock is an A1 length these are made of Nylon 6 and are durable. Could make a good SBR setup if you were so inclined and are within the laws of the land (Please do not test the BATF) file your forms, pay your fee. Doesnt rattle around much like a 6 position collapsible stock and you can paint/cerakote it. I've had one for a decade and it looks as good as the day I got it. My .02

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Whoever is commenting there's a FFL fee:
I was just there. Requested this inside the store.
They walked in the back and got it and rang me up.
Requested veteran discount and they scanned a 10 off 50 code.
I paid $64.19 out the door.

This comes with the special captured takedown pins as well

Looks great with no flashing

As of yesterday, they have 76 left in stock

2 votes
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For whatever reason, Brownells charges a $10 FFL fee if you have it shipped to a different FFL dealer. I don't know of any firearm dealer who charges a FFL fee for in-store purchase or pick-up.

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Their checkout process is weird. Brownells always has discount codes that work for purchases with certain limits. If you use any of these codes for qualifying purchases and you have an FFL item in your cart, you not only get the discount but your FFL fee does not add up in the total. It will still show an FFL fee in the subtotal but it does not add up in the total. As an example code GIFT10 gives you a discount of of $10.00 off a $100.00 purchase. Try adding something else to your cart to raise your cart total to any of the current Brownells coupons or add 2 of these to your cart like I did and get $10.00 off with no FFL fees and free shipping. Of course now that I have pointed this out-Brownells may change it.

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Cool .... and like you said, weird. So their codes are worth more than face value when applied toward the purchase of shipped FFL items. Thanks for sharing the good info.

1 vote
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beware, they had FFL fee.... ends up back to 100 bucks

1 vote
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Yeah, every time I have gone to pickup any gun there is a $40 transfer fee.

0 votes
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That's robbery

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