M16/M4 Non-Rotating Sear Pin

Name: M16/M4 Non-Rotating Sear Pin
Brand: KNS Precision
Availability: InStock

KNS Precision · Lower Parts

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Best price

$36.99at Brownells

In stock checked Oct 1, 2026

Buy at Brownells

Compare 6 stores

Where to buy

Store	Price	Availability	Buy
Brownells Best price	$36.99checked Oct 1, 2026	In stock	Buy at Brownells
GunMag Warehouse	$36.99checked Oct 1, 2026	In stock	Buy at GunMag Warehouse
Ammunition Depot	$41.99checked Oct 1, 2026	In stock	Buy at Ammunition Depot
Battlehawk Armory	$36.78Salechecked Oct 1, 2026	Check store	Buy at Battlehawk Armory
Palmetto State Armory	$41.19Salechecked Oct 1, 2026	Check store	Buy at Palmetto State Armory
OpticsPlanet	$39.99Salechecked Oct 1, 2026	Out of stock	Buy at OpticsPlanet

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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Lowest in-stock price in the last 30 days: $36.99 at Brownells. Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
Ammunition Depot	$41.99	$41.99	$41.99
Battlehawk Armory	$36.78	$36.78	$36.78
Brownells	$36.99	$36.99	$36.99
GunMag Warehouse	$36.99	$36.99	$36.99
OpticsPlanet	$39.99	$39.99	$39.99
Palmetto State Armory	$41.19	$41.19	$41.19

Since Sep 27, 2026.

About this part

The M16/M4 Non-Rotating Sear Pin is an AR-15 lower part from KNS Precision. It's sold by 6 stores (3 in stock), from $36.78 to $41.99. The lowest in-stock price in the last 30 days was $36.99 at Brownells.

Specifications

Manufacturer: KNS Precision
Platform: AR-15
Material: Steel

From the manufacturer

Steel pin replaces original pin and locks into place against the take-down pin on M16/M4 rifles to prevent rotation and wear on receiver holes. Drop-in installation requires no tools or gunsmithing. Mfg: Kns Precision SPECS: Steel, matte black phosphate finish. Fits M16/M4 receivers only.