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SureFire

SureFire SOCOM556-RC4

Fourth-generation Inconel SOCOM 5.56 with low-back-pressure S-curve geometry developed with Oak Ridge National Labs

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Quick Specs

Price
$1,549
Weight
1 lb 1 oz
Brand
SureFire
Category
suppressor

Features

  • •5.56 NATO
  • •Inconel hybrid
  • •SureFire Fast-Attach
  • •Manufacturer claim 60% back-pressure reduction vs RC3
  • •$1,549

Capability Boosts

Suppression+3
Reliability+2

Recommended For

Outdoor Defense+5
Home Defense+2
Duty/Patrol+2

Compatibility Tags

family: modern-riflefamily: ar-patternsuitable-for: compactcaliber: 556caliber: 223

Pros

  • +Inconel construction with documented 80,000-round service lives in the SOCOM RC2 lineage
  • +SureFire Fast-Attach mount is the most durable QD system in the industry
  • +Manufacturer-claimed 60% back-pressure reduction over the RC3
  • +Manufacturer-claimed ~4x flash improvement over the RC3
  • +Full-auto rated, proven military service history, backward-compatible with all SOCOM muzzle devices
  • +$250 MSRP drop from the $1,799 RC3 launch price

Cons

  • −No independent PEW Science Suppression Rating published as of May 2026
  • −All performance claims are SureFire-internal until third-party data lands
  • −17 oz weight is heavy compared with the newer launches, SAW Tisha is 6.5 oz lighter
  • −SureFire deliberately rejected HUB 1.375x24, locks you into Fast-Attach ecosystem
  • −Fast-Attach muzzle devices add $100-200 per host
  • −10.3-inch minimum barrel length

Detailed Specifications

Length
6.3 inches (3.8 inches added)
diameter
1.5 inches
weight
17 oz
Material
Inconel additive plus CNC laser-welded hybrid
Mount Type
SureFire Fast-Attach (proprietary)
minimumBarrelLength
10.3 inches
ratedCalibers
5.56 NATO / .223 REM
soundReduction
Manufacturer claim 139 dB at-ear (MK18, M855)
fullAutoRated
Yes
warranty
30-day money-back plus standard repair/replace

Compatible Platforms

+111 more

Custom

Custom Tactical AKM (7.62x39)

Custom

Custom AR-15 (Build From Scratch)

Custom

Custom AR-9 (Build From Scratch)

Custom

Custom Precision Rifle (R700 Footprint)

Ruger

Ruger American Rifle Gen II Predator

Bergara

Bergara B-14 HMR

Pairs Well With

Top matches

Dark Storm Industries

Dark Storm DS-15 Typhoon Fixed Magazine 5.56

3 shared compatibility tags

Excellent

Robinson Armament

Robinson Armament XCR

2 shared compatibility tags

Excellent

Sig Sauer

Sig MCX Virtus Patrol 16"

2 shared compatibility tags

Excellent

Sig Sauer

Sig MCX Spear-LT 11.5"

2 shared compatibility tags

Excellent

Springfield Armory

Springfield Hellion 16"

2 shared compatibility tags

Excellent

Springfield Armory

Springfield Hellion 18"

2 shared compatibility tags

Excellent

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