Ballistic Advantage Performance Series 13.7" 5.56 Hanson Mid-Length Barrel w/ Low Pro Gas Block (BABL556036F)

$163

Under 16 in: a rifle needs a pinned and welded muzzle device to reach 16 in overall barrel length, or NFA registration as an SBR. 13.7 in needs a long muzzle device, about 2.3 in, pinned and welded. Thread pitch assumed standard 1/2x28.

Build with this part

Opens the builder with this part fitted. Other parts change only if they have to.

Specs

Length (in)	13.7
Caliber	556
Calname	5.56 NATO
Gas system	mid
Thread	1/2x28
Gasblock	Yes

Pros and cons

Pros

Comes with a low-profile gas block installed
Hanson profile keeps weight forward of the block light
13.7 in length suits a pinned-and-welded 16 in build

Cons

Gas block is fixed, not adjustable
Often out of stock at retailers

Other barrel options

Criterion Barrels CORE 14.5" .223 Wylde Mid-Length Chrome-Lined Barrel (15140-CR8) $313
Ballistic Advantage Modern Series 16" 5.56 Government Profile Mid-Length Barrel (BABL556015M) $175
Ballistic Advantage Premium Series 16" .223 Wylde SPR Fluted Mid-Length Barrel (BABL223017PL) $238
Faxon Firearms Duty Series 16" Pencil 5.56 NATO Mid-Length Barrel (15A58M16NPQ) $187
Dirty Bird 16" 5.56 M4 Carbine Phosphate/Chrome-Lined Barrel w/ F-Marked FSB (D264) $230
Aero Precision 12.5" 5.56 Government Profile CMV Barrel, Carbine Length (APRH100422C) $170
Ballistic Advantage Modern Series 16" .300 BLK DRP Pistol-Length Barrel (BABL300011M) $171
Faxon Firearms Duty Series 16" Gunner .300 BLK Carbine-Length Barrel (15A38C16NGQ) $173