YM 5.56 M16 Chrome BCG w/ HMB™

$299.95

Made in-house since 1991. And deliberately not staked — which deserves an explanation, not a footnote.

Description

Start with what the group is. Young machine their carriers in-house on CNC from mil-spec quality steel, then heat treat, hard chrome, and chrome line the bolt throat. Sharp edges and rough finishes are taken off deliberately — their phrase is that it will not shred fingers. It is built to standard mil-spec design using the same steel and the same processes as their National Match line, and it carries their recoil-lug supported gas key.

On the carrier itself they add 30% more contact area on the upper and lower guide surfaces than a standard carrier, which aligns the carrier more precisely in the receiver. On their National Match bolt, three critical areas are precision ground after heat treatment — the rear of the bolt lugs, the centre support ring and the bolt tail — for consistent lockup shot to shot. This group is the standard model, built to the same processes.

SKU: BCG-YM-556-CHR-HMB

Full specifications, fitting notes and warnings: YM 5.56 M16 Chrome BCG w/ HMB™ — product page.

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Additional information

Weight 1.0 lbs
Dimensions 9 × 3 × 2 in
Manufacturer item number

1-50-12-001

Chambering

5.56 mm NATO

Bolt face

Mil-spec .378

Also runs

Any cartridge on the mil-spec .378 bolt face — .223 Remington, 6mm MAX, .300 AAC Blackout, .350 Legend, .204 Ruger, 300 HAM’R, 7.62×40 WT. Bolt face is necessary but not sufficient — see the note below

Carrier

Mil-spec quality steel, CNC machined in-house, heat treated, hard chromed. M16 profile. 30% more guide contact area

Bolt throat

Chrome lined

Bolt

HMB™ by HM Defense — cam pin socket in place of a pass-through hole, radiused cam pin

Gas key

Recoil-lug supported. Torqued to 56 in-lb with thread locker, deliberately not staked

SOT marks

None — this group is sold exactly as Young Manufacturing build it. We do not apply our arrow-index cam pin or index-marked gas key to it

Finish

Hard chrome, applied after heat treatment

Reviews

There are no reviews yet.

Be the first to review “YM 5.56 M16 Chrome BCG w/ HMB™”

Your email address will not be published. Required fields are marked *