AR15 6.5 Grendel / 6mm ARC Bolt Assembly

Name: AR15 6.5 Grendel / 6mm ARC Bolt Assembly
Brand: JP Enterprises
Availability: InStock

JP Enterprises · Bolt Carrier Group

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Best price

$142.45at Brownells

In stock checked Oct 1, 2026

Buy at Brownells

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Where to buy

Store	Price	Availability	Buy
Brownells Best price	$142.45checked Oct 1, 2026	In stock	Buy at Brownells
OpticsPlanet	$142.45Salechecked Oct 1, 2026	In stock	Buy at OpticsPlanet
Ammunition Depot	$142.45checked Oct 1, 2026	In stock	Buy at Ammunition Depot
Palmetto State Armory	$144.99checked Sep 30, 2026	Check store	Buy at Palmetto State Armory

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: $142.45 at OpticsPlanet. Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
Ammunition Depot	$142.45	$142.45	$142.45
Brownells	$142.45	$142.45	$142.45
OpticsPlanet	$142.45	$142.45	$142.45
Palmetto State Armory	$144.99	$144.99	$144.99

Since Sep 27, 2026.

About this part

The AR15 6.5 Grendel / 6mm ARC Bolt Assembly is an AR-15 bolt carrier group from JP Enterprises. It's sold by 4 stores (3 in stock), from $142.45 to $144.99. The lowest in-stock price in the last 30 days was $142.45 at OpticsPlanet.

Fits and works with

Bolt: 6.5 Grendel / 6mm ARC · Bolt carrier groups

Specifications

Manufacturer: JP Enterprises
Platform: AR-15

From the manufacturer

Life of up to 60,000 Rounds

The J P Enterprises Enhanced Bolt Assembly has been designed to offer superior performance for the 6.5 Grendel and 6mm ARC. The bolt is precision machined from an ultra-strong steel alloy to last up to 10 times longer than a standard carbon steel bolt, minimizing the risk of bolt failure during a critical engagement.

Made from SAE 9310 steel the J P Enterprises Enhanced Bolt has a tough, ductile inner core highly resistant to stress fracturing, with a hard outer surface that resists galling and wear, to ensure a service life of up to 60,000 rounds.

The JPE Enhanced Bolt Assembly offers the same steel used in the transmission gears of Formula 1 race cars, so it’s ideal for high-impact, high-heat applications like sustained full-auto fire. Meticulously machined radiuses on all 90-degree corners on the locking lugs help distribute impact force evenly and further reduce risk of premature wear and cracking. Fully supported extractor face and precise extractor engagement of the 6.5 Grendel / 6mm ARC rounds, further ensuring smooth, reliable cycling.

AR-15, Issue:11, Page:013
Big Book Catalog, Issue:72, Page:019
Sinclair, Issue:5B, Page:248