.300 Caliber


SOCOM 2 Series Fast-Attach® Sound Suppressor (Silencer)




  • The quietest SureFire suppressor ever designed
  • Employs SureFire Total Signature Reduction® technology to virtually eliminate first-round flash, and reduce sound and dust signatures
  • Optimized for .300 BLK/Whisper (7.62x35) subsonic and supersonic ammo
  • Engineered for extreme durability

Get Ready For The Blackout. The SureFire SOCOM300-SPS is the answer for .300 BLK/Whisper (7.62 x 35) subsonic and supersonic ammo users seeking superior levels of sound attenuation from a precision-built suppressor. It’s also very capable in 5.56 mm and 300 WM applications. The SPS features highly specialized, V-shaped baffles that promote the utmost in sound suppression for subsonic ammunition while virtually eliminating first-round flash and dust signatures. Constructed of Inconel alloy and stainless steel, and CNC laser-welded, it’s stealthy without sacrificing an ounce of strength. Go ahead. Make it rain.



  • The quietest suppressor in the SureFire family, optimized for .300 BLK carbines with 10-inch or shorter barrels
  • Oversized yet precision machined bore diameter decreases the baffle strike probability from unstable projectiles
  • 7.9-inch overall length optimized for superior signature reduction
  • Baffles are specifically designed and optimized for subsonic ammunition
  • Eliminates first-round flash, a phenomenon common in most suppressors
  • Suppresses visible flash by up to 99.5%
  • Tight tolerances and precision bore concentricity result in superior accuracy
  • Cutting-edge internal venting reduces back pressure, cyclic rate and gas blowback to significantly reduce operating temperatures
  • Compatible with the SureFire array of Fast-Attach® mounting adapters (flash hiders, compensators, and WARCOMPS)
  • Fast-Attach® design allows fast, secure, easy attachment and removal without tools
  • Every SureFire SOCOM Series suppressor comes with a FirstSpear™ MOLLE pouch and cleaning brush
  • Durable construction delivers a long service life
  • Proudly designed and manufactured in the U.S.A.


view user manual

Key Attributes

7.62 mm / .308 / .300 Blackout
High-Temp Alloy & Stainless Steel
Ionbond and Cerakote™ Finish


Black, Dark Earth
1.5 in (3.8 cm)
7.9 in (20.0 cm)
5.4 in (13.7 cm) *Actual length may vary, depending on which SureFire adapter is used
20 oz (566 g)

Sound Data

Barrel Length Ammunition Sound*
5.5 in Sig 125 OTM 133 dB
5.5 in BH 220 OTM 126 dB
25 in M118 LR 132 dB
*At the shooter's ear

Product Reviews

5/5 3 Reviews Write a Review
  • Very impressed with this can!

    Dean H Feb 15th 2021
    5 5

    I finally got the chance to shoot the SF SPS 300, couldn't be happier with my purchase. It was mounted on a 10.3" 300BO and shot with both subs and supers; it is stupid quiet with subsonic rounds and hearing safe with the supersonic. The action cycling drowned out all other sounds except the round smacking steel with the subs. Seriously. Changed the host to a .308; it sounds great. Use it exclusively on the 300OB and a 5.56 with a 14.5" barrel. Have not noticed any POI shift.

  • Awesomeness

    Jeremy Flinders Apr 25th 2017
    5 5

    Great Suppressor! Mainly use it on my LaRue 556 SBR, but also on my 300 blkout. I love The QD feature, point of impact shift is very but consistent and built like a tank! If they make a 45 cal Suppressor I'll buy it! Worth the 11 month wait!

  • Great can for the $$$

    Zef Jan 18th 2017
    5 5

    I have used this on my AR10, 556 and .300blkout, it sounds great and is built like a tank!