5.56 NATO Win Bolt Assembly Kit W/Dual Ejector For SR-15/16

Name: 5.56 NATO Win Bolt Assembly Kit W/Dual Ejector For SR-15/16
Brand: Knights Armament

Knights Armament · Bolt Carrier Group

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5.56 NATO Win Bolt Assembly Kit W/Dual Ejector For SR-15/16

Best price

$319.95at AR15Discounts

Sale checked Nov 14, 2026

Buy at AR15Discounts

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Fits and works with

Caliber: 5.56 / .223 · Shop matching ammo
Bolt: Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups

Specifications

Manufacturer: Knights Armament

Compatibility

Caliber: 5.56 mm NATO
Platform: AR-15

Where to buy

Store	Price	Availability	Buy	Add to build
AR15Discounts Best price 5% off	$319.95Salechecked Nov 14, 2026	Check store	Buy at AR15Discounts
Brownells 17.76% off · ends Nov 15 · exclusions apply	$362.52checked Nov 14, 2026	Out of stock	Buy at Brownells

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

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Dashed line = out of stock. Tracking since Sep 28, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
AR15Discounts	$319.95	$319.95	$319.95
Brownells	$362.52	$362.52	$362.52

Since Sep 28, 2026.

About this part

The 5.56 NATO Win Bolt Assembly Kit W/Dual Ejector For SR-15/16 is a 5.56 / .223 bolt carrier group from Knights Armament. It's sold by 2 stores, from $319.95 to $362.52.

From the manufacturer

KNIGHT'S ARMAMENT 5.56 NATO BOLT ASSEMBLY KIT W/DUAL EJECTOR FOR SR-15/16 Replacement SR-16/15 E3.2 bolt kit. Compatible only with KAC SR-16/15 barrel extension. Always confirm headspace prior to use. Mfg: Knights Armament