Spike's Tactical 16" 5.56 NATO Optimal Contour 1:7 Mid-Length AR-15 Barrel - Phosphate

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Spike's Tactical 16" 5.56 Nato Optimal Contour 1:7 Mid-Length Ar-15 Barrel - Phosphate - Barrel for AR-15 - view 1
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Spike's Tactical

Overview

The Spike's Tactical 16" 5.56 NATO Optimal Contour Barrel is designed for precision and reliability, featuring a mid-length gas system that enhances cycling efficiency and recoil management. With a twist rate of 1:7, this barrel stabilizes a variety of bullet weights, making it versatile for different ammunition choices. This barrel is often found in builds focused on tactical applications or general-purpose rifles, where balance and performance are key.

Specifications

MPNSB51606-ML
Thread Pitch1/2x28
Caliber5.56 NATO
Barrel Length16
Barrel ProfileOptimum
CoatingManganese Phosphate
Twist Rate1:7
Gas System LengthMid-Length

Available Merchants(3)

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$315
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Price and stock

The Spike's Tactical 16" 5.56 NATO Optimal Contour 1:7 Mid-Length AR-15 Barrel - Phosphate was in stock most days in September 2026, but today only Optics Planet has it in stock. It dipped to $299.21 at Optics Planet for a stretch in September 2026, under its usual $314.96, so sales do come around. Buying today, the lowest price is $314.96 at Optics Planet, above September's low of $299.21, so a better deal may come back.

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