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Spikes Tactical ST Compressor 8.1" 300 BLK Upper Receiver

Spikes Tactical ST Compressor 8.1" (silencer) Upper Receiver, .300 AAC BLK, NFA Item

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The Spike's Tactical Compressor Complete Upper is the long awaited culmination of SBR and suppressor technology. Developed in conjunction with active law enforcement, the ST Compressor Upper has been brutally overbuilt without losing the finer points that make it Sub MOA accurate at extended ranges. The ST Compressor Upper is the first factory produced SBR Upper with an integrated sound suppressor that requires no maintenance. By employing billet technology, its designers were able to cleanly design-in every feature that was previously applied as an external add on. With the use of self lubricating coatings, and heat-sync technology, the ST Compressor Upper represents the digital upgrading of the analog rifle.

Note: All NFA Rules apply. This item will require a Form 3 transfer to your local dealer and then a Form 4 transfer to you. Make sure you can legally own this item before purchasing.


  • ST Billet Upper Receiver
  • Integrated Barrel Nut Upper
  • ST 9" BAR Rail w/ Heatshield
  • ST MRS-2 Suppressor
  • ST Compressor 8.1" FN CHF Radial Fluted Barrel
  • ST Pinned Gas Block w/ Integrated Collar
  • ST DynaComp Muzzle Device w/ Integrated Mount
  • ST Melonite Gas Tube
  • ST Nickle Boron Bolt Carrier Group
  • ST-T3 Buffer
  • Weight of 4.75lbs (Complete with MRS-2 and BCG)


  • (1) ST Compressor Upper
  • (1) ST MRS-2 Suppressor
  • (3) Low Profile Ladder Rail Covers
  • (1) ST-T3 Buffer
  • (1) Spike's Tactical Lifetime Warranty
Specs - More Info
Additional Info
Caliber .300 Blackout
Manufacturer Spikes Tactical
Barrel Length (in) 8.1"
Accessory Rail Not Applicable
FFL Requirements All firearms must be shipped to a Federal Firearms License (FFL) holder. We cannot and will not ship firearms to anyone but a FFL. We must receive the receiving dealer's FFL & SOT by fax (314-558-8429) or email ([email protected]).
Warranty Warranty provided by product manufacturer.
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