Ballistic Advantage AR-15 Modern Series 18 Rifle-Length Barrel SPR W/ Ops 12

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Ballistic Advantage Ar-15 Modern Series 18 Rifle-Length Barrel Spr W/ Ops 12 - Barrel for AR-15 - view 1
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Ballistic Advantage

Overview

The Ballistic Advantage AR-15 Modern Series 18 Rifle-Length Barrel is designed for precision and performance, featuring an 18-inch length with an SPR profile that strikes a balance between weight and rigidity. Chambered in 5.56 NATO, this barrel offers a 1:8 twist rate, making it suitable for stabilizing a range of bullet weights while the rifle-length gas system ensures smooth cycling and reduced recoil. This barrel is commonly found in builds that prioritize accuracy and reliability, particularly those designed for precision shooting or tactical applications.

Specifications

MPNBABL556020M
Barrel ProfileM4
Gas Block Diameter.750
Gas System LengthRifle
Caliber5.56 NATO
FinishNitride
Barrel Length18
CoatingNitride
Twist Rate1:8
Thread Pitch1/2x28

Available Merchants(9)

Prices checked

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AT3 Tactical logo
AT3 Tactical
Shipping TBD
Shipping Speed
In Stock
$140.60
Ammunition Depot logo
Ammunition Depot
~$28.90 est. shipping
Shipping Speed
In Stock
$147.99
Classic Firearms logo
Classic Firearms
Shipping varies
Shipping Speed
In Stock
$166.25
BattleHawk Armory logo
BattleHawk Armory
Shipping varies
Shipping Speed
In Stock
$166.25
Palmetto State Armory logo
Palmetto State Armory
Free shipping
Shipping Speed
In Stock
$166.99
Primary Arms logo
Primary Arms
Free shipping
Shipping Speed
In Stock
$175.75
KY Gun Company logo
KY Gun Company
Flat rate shipping
Shipping Speed
In Stock
$175.75
Brownells logo
Brownells
Free shipping
Shipping Speed
Out of Stock
$166.25
Optics Planet logo
Optics Planet
Free shipping
Shipping Speed
Out of Stock
$175.75

October 2026 on GunPartPicker

Ballistic Advantage AR-15 Modern Series 18 Rifle-Length Barrel SPR W/ Ops 12 ranked #131 of the 329 barrels builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #121 of the 1,047 barrels builders have added. Builds with this barrel are nearly all chambered in 5.56 NATO, nearly all on rifle-length gas, and nearly all AR-15.

Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today 7 of the 9 retailers we track have it in stock. Buying today, the lowest price is $140.60 at AT3 Tactical, which matches the best price we saw in October.

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Builds Featuring This Part

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Builds in the community that include the Ballistic Advantage Ar-15 Modern Series 18 Rifle-Length Barrel Spr W/ Ops 12

BuildPartsTotal
PSA 18" build build
PSA 18" build
10$921.67

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