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This mount screws into the rear of all GM-9 MULTIMOUNT and older TRINITY suppressors to allow use on the HK MP5 barrel with 3-Lug as well as other barrels modified with our male 3-lug adapters.

Introducing the new GVAC system from Gemtech. Significantly reduce the amount of gas blowback you'll experience wwhen shooting suppressed with its patented design. The re-imagined barrel profile enhanced bolt carrier profile enhanced bolt carrier group and ETM muzzle device maximize peformance so nothing holds you back. Redefine suppressed shooting with the GVAC system.

  • UPPER RECEIVER – Mil-Spec with Indexing Marks and M4 Feed Ramps. 7075-T6 Aluminum Type III Hard Coat Anodized
  • BARREL – 4150CMV Steel Stress Relieved Armornite Treated 1:8 Twist 5R Rifled GVAC Profile Nickle Boron Coated  barrel Extension 1/2X28 TPI Muzzle Threads
  • GAS SYSTEM – Pinned Low-Pro GVAC Gas Block 4140CM Steel Mid-Length GVAC Direct-Impingement
  • MUZZLE DEVICE – Gemtech ETM Flash Hider 4140CM Steel
  • BOLT CARRIER GROUP – Carpenter 158 steel bolt 8620 Steel Carrier Mil-Spec MP Tested Mag-Phos Finish Chrome Lined Properly staked Gas Key Enhanced reliability bolt carrier and chrome firing pin.
  • HANDGUARD – 15” Midwest Industries Combat M-LOK Free-Float SevenSided M-LOK hand guard. Continuous MIL-STD 1913 Picatinny Top Rail Integrated QD sling sockets. Machined from 6061-T6 Aluminum and Type III Hard Coat Anodized.

An extra LID Piston Core allows you to easily change threads on a TUNDRA or MULTIMOUNT LID to use one suppressor on multiple platforms. Installs in the field without the use of tools.

LID body Spring and Piston Block not included shown for illustrations only. This is the threaded piston only.

Threaded End Cap adapters for use with the GM-45 and Blackside suppressors. These allow the use of the suppressor on Fixed barreled weapons.

Threaded End Cap adapters for use with the GM-45 and Blackside suppressors. These allow the use of the suppressor on Fixed barreled weapons. The GM-45 and Lunar-45 suppressors are rated for .300 blackout with subsonic ammo only

The Threaded Endcap Adapter to use on GM-9 and MULTIMOUNT suppressors when used with fixed barrel carbines and SMGs.

NOTE: Most handguns require the use of Gemtech's LID mount for proper function.

The Threaded Endcap Adapter to use on GM-9 and MULTIMOUNT suppressors when used with fixed barrel carbines and SMGs. The 5/8-24 mount is for use with .300 Whisper and .300 Blackout carbines using SUBSONIC AMMO ONLY.

NOTE: Most handguns require the use of Gemtech's LID mount for proper function.

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