FailZero Nickel Boron Bolt Assembly for AR15/M16/M4 5.56/.223

Gun Parts Failzero UPC 881314861873

FailZero Nickel Boron Bolt Assembly for AR15/M16/M4 5.56/.223
$73.99

at Good 4 Guns · checked 29 minutes ago

Shipping calculated in cart

View at Good 4 Guns →

8 retailers · $73.99 to $86.99 in stock

This listing: Ammunition Depot $88.49, out of stock

Offers

Fail Zero FZ EXO Bolt Assembly for AR15
Good 4 Guns In Stock Checked 29 minutes ago Condition: New
$73.99 + shipping in cart
History
FailZero Part Bolt Assembly, Nickel - EXO-BOLTASSEMBLY01
Palmetto State Armory In Stock Checked Aug 20, 2026
$86.99 + shipping in cart
History
FZ EXO BOLT ASSEMBLY
E-Commerce Arms In Stock Checked 33 minutes ago Condition: New
$92.53 $80.58 + $11.95
History
FZ EXO BOLT ASSEMBLY
BattleHawk Armory Out of Stock Checked 1 hour ago
$76.94 + shipping in cart
History
Fail Zero EXO Bolt ASSEMBLY
GrabAGun Out of Stock Checked 1 hour ago
$86.29 + shipping in cart
History
FailZero Nickel Boron Bolt Assembly for AR15/M16/M4 5.56/.223
Ammunition Depot Out of Stock Checked 6 hours ago SKU EXO-BOLTASSEMBLY01
$88.49 + shipping in cart
History
FAILZERO Bolt Assembly 5.56/223 Nickel
Kentucky Gun Co Out of Stock Checked 4 hours ago
$109.93 $95.99 + $13.94
History
FailZero Part Bolt Assembly Nickel
Optics Planet Out of Stock Checked 5 hours ago
$103.49 + free shipping
History

Shipping estimate for one item to the lower 48 from the retailer's published policy or feed; the retailer's cart is final.

Price history

Lowest price across retailers each day.

Lowest seen
$73.99
Typical price
$77.28
Tracked since
Aug 20, 2026

Today's best price matches the 80-day low and is 4% below typical.

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