We may get paid by partner for deals, including promoted items

Sponsored

OpticsPlanet use Code: GEARCHASE Amazon - Lightning Deals Amazon - Hunting Deals Bike Racks Heated Clothing Stio Hoka Fishing Mountain Hardwear

KAK AR-15 Mil-Spec Castle Nut w/Staking Cuts by Kak Industry -

Product Description

KAK AR-15 Mil-Spec Castle Nut w/Staking Cuts. The manufacturer says that KAK AR-15 Mil-Spec Castle Nut is compatible with AR-15KAK AR15-LP-057: AR-15 Mil-Spec Castle Nut w/Staking Cuts

KAK AR-15 Mil-Spec Castle Nut w/Staking Cuts

at Optics Planet

Browse all Optics Planet deals

$4.99 $5.00 0% Discount

You save $0.01

In Stock at Optics Planet

Price verified today

Buy Now at Optics Planet

Secure checkout Easy returns

or compare prices

Product Details

Brand Kak Industry

More from Kak Industry

Last Updated:

Aug 30, 2026 12:07 AM

Kak Industry Carbine-Length Gas Tube for AR15

Kak Industry Carbine-Length Gas Tube for AR15 View Details

$15.99

Buy Now · $15.99

Sportsmans Outdoor Superstore

Last Updated:

Aug 30, 2026 12:07 AM

Kak Industry AR 15 Lower Parts Kit

Kak Industry AR 15 Lower Parts Kit View Details

$32.99

Buy Now · $32.99

Sportsmans Outdoor Superstore

Last Updated:

Aug 29, 2026 09:37 PM

KAK Industry K-SPEC Enhanced AR-15 5.56 Bolt Carrier Group, Dual Ejectors, Chrome MO-425-3305-007

KAK Industry K-SPEC Enhanced AR-15 5.56 Bolt Carrier Group, Dual Ejectors, Chrome MO-425-3305-007 View Details

$225.98 $259.95

13% off

Buy Now · $225.98

Last Updated:

Aug 29, 2026 09:37 PM

KAK INDUSTRY KF-15 Forged AR-15 Stripped Lower Receiver Flat Dark Earth Anodized MO-801-0604-001F

KAK INDUSTRY KF-15 Forged AR-15 Stripped Lower Receiver Flat Dark Earth Anodized MO-801-0604-001F View Details

$154.98 $156.72

1% off

Buy Now · $154.98

Last Updated:

Aug 29, 2026 09:37 PM

KAK Industry AR-15 Rifle A2 Buttstock Kit with Buffer, Spring & A2 Extension Tube AR15-KT-114

KAK Industry AR-15 Rifle A2 Buttstock Kit with Buffer, Spring & A2 Extension Tube AR15-KT-114 View Details

$88.98

Buy Now · $88.98

Last Updated:

Aug 30, 2026 01:42 AM

KAK Industry AR-15 Lower Parts Kit - No Grip / Trigger Guard

KAK Industry AR-15 Lower Parts Kit - No Grip / Trigger Guard View Details

$44.96

Buy Now · $44.96

Last Updated:

Aug 30, 2026 12:21 AM

Kak Industry MO-812-1010-041 KF-15 5.56 NATO 16" Black Phosphate Barrel

Kak Industry MO-812-1010-041 KF-15 5.56 NATO 16" Black Phosphate Barrel View Details

$864.86

Buy Now · $864.86

United States Association of Gun Owners

Last Updated:

Aug 30, 2026 12:21 AM

Kak Industry MO-812-1010-040 KF-15 Sports South Exclusive 5.56 NATO Black Phosphate Barrel

Kak Industry MO-812-1010-040 KF-15 Sports South Exclusive 5.56 NATO Black Phosphate Barrel View Details

$849.56

Buy Now · $849.56

United States Association of Gun Owners

Last Updated:

Aug 30, 2026 12:21 AM

Kak Industry MO-812-1010-042 KF-15 5.56 NATO 13.90" Black Phosphate Barrel, Aluminum Receiver

Kak Industry MO-812-1010-042 KF-15 5.56 NATO 13.90" Black Phosphate Barrel, Aluminum Receiver View Details

$845.06

Buy Now · $845.06

United States Association of Gun Owners

Last Updated:

Aug 30, 2026 12:21 AM

Kak Industry MO-812-1010-043 KF-15 5.56 NATO 16" Black Nitride Barrel

Kak Industry MO-812-1010-043 KF-15 5.56 NATO 16" Black Nitride Barrel View Details

$705.56

Buy Now · $705.56

United States Association of Gun Owners

Last Updated:

Aug 30, 2026 12:21 AM

Kak Industry MO-812-1010-044 KF-15 5.56 NATO 13.90" Black Nitride Barrel, Aluminum Receiver

Kak Industry MO-812-1010-044 KF-15 5.56 NATO 13.90" Black Nitride Barrel, Aluminum Receiver View Details

$681.26

Buy Now · $681.26

United States Association of Gun Owners

Last Updated:

Aug 30, 2026 12:21 AM

KAK MO-425-0506-007 M16 7.62X39 K-SPEC NP3

KAK MO-425-0506-007 M16 7.62X39 K-SPEC NP3 View Details

$251.96

Buy Now · $251.96

United States Association of Gun Owners

Last Updated:

Aug 30, 2026 12:21 AM

KAK MO-504-1010-001 5.56 NATO FIELD REPAIR KIT

KAK MO-504-1010-001 5.56 NATO FIELD REPAIR KIT View Details

$58.46

Buy Now · $58.46

United States Association of Gun Owners

Last Updated:

Aug 30, 2026 12:07 AM

Kak Industry Carrier Completion Kit, Chrome

Kak Industry Carrier Completion Kit, Chrome View Details

$18.99

Buy Now · $18.99

Sportsmans Outdoor Superstore

Last Updated:

Aug 29, 2026 10:23 PM

KAK K-SPEC Low Mass AR15 BCG Dual Ejectors Down Vent Sand Cuts Anodize and NP3

KAK K-SPEC Low Mass AR15 BCG Dual Ejectors Down Vent Sand Cuts Anodize and NP3 View Details

$247.49 $274.00

10% off

Buy Now · $247.49

Last Updated:

Aug 29, 2026 10:23 PM

KAK K-SPEC Low Mass AR15 BCG Dual Ejectors Down Vent Sand Cuts

KAK K-SPEC Low Mass AR15 BCG Dual Ejectors Down Vent Sand Cuts View Details

$81.99 $89.00

8% off

Buy Now · $81.99

Last Updated:

Aug 29, 2026 10:23 PM

KAK Industry Plan B Multitool Wrench Fits Plan B Muzzle Devices Black

KAK Industry Plan B Multitool Wrench Fits Plan B Muzzle Devices Black View Details

$29.99 $31.99

6% off

Buy Now · $29.99

Last Updated:

Aug 29, 2026 10:23 PM

USED KAK Shockwave Buffer Tube Kit Tube/Buffer/Buffer Spring/Endplate/Castle Nut SHOCKWAVE-TUBE-KIT

USED KAK Shockwave Buffer Tube Kit Tube/Buffer/Buffer Spring/Endplate/Castle Nut SHOCKWAVE-TUBE-KIT View Details

$39.49 $50.00

21% off

Buy Now · $39.49

Last Updated:

Aug 29, 2026 10:23 PM

KAK Industry K-SPEC Enhanced AR-15 5.56 NATO/.300 Blackout Bolt Carrier Group Side Vent Sand Cuts Chrome Silver

KAK Industry K-SPEC Enhanced AR-15 5.56 NATO/.300 Blackout Bolt Carrier Group Side Vent Sand Cuts Chrome Silver View Details

$233.96 $259.95

10% off

Buy Now · $233.96

Last Updated:

Aug 29, 2026 09:37 PM

KAK Industry Carbine-Length AR-15 Gas Tube, Roll Pin Not Included, AR15-UP-171

KAK Industry Carbine-Length AR-15 Gas Tube, Roll Pin Not Included, AR15-UP-171 View Details

$22.98

Buy Now · $22.98