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Description
SKU: V-4027-3410-004-RP-FRT
VKTR VK-1 5.56mm 13.7″ P&W NOX Bundle – Complete Upper + Disruptor FRT + BHA Precision H2 Buffer
This bundle brings together three purpose-built components that are exceptionally well matched: the VKTR VK-1 self-regulating piston upper, the Partisan Disruptor Forced Reset Trigger, and the BHA Precision H2 Carbine Buffer. When combined, they create a soft-shooting, controllable, and reliable system that excels across a wide range of firing cadences—especially when suppressed.
At the heart of the system is the VK-1 upper, whose patented piston design and internal timing allow it to naturally manage gas, bolt speed, and dwell time. That stable operating environment is exactly what high-performance triggers and tuned buffers need to shine.
Why This Setup Works So Well Together
The VKTR VK-1 is not a traditional over-gassed AR upper that relies on heavy buffers and aftermarket tuning to stay under control. Instead, it is self-regulating by design, meaning excess gas is managed internally rather than transferred directly into the bolt carrier group.
That self-regulation produces three major benefits:
Consistent cyclic behavior across slow, controlled fire and rapid strings
Reduced bolt velocity, especially when suppressed
Lower felt recoil and flatter impulse, even at higher rates of fire
When paired with the Partisan Disruptor FRT, the VK-1’s smooth, predictable cycling allows the trigger to reset consistently without harsh carrier slam or erratic timing. The addition of the BHA Precision H2 buffer further refines the system by adding just enough mass to slow the carrier and extend dwell time—resulting in an exceptionally controllable and reliable package.
This is a system designed to run clean, smooth, and stable whether unsuppressed or suppressed, and whether firing deliberately or rapidly.
Bundle Contents
1× VKTR VK-1 Complete Upper – 13.7″ Pinned & Welded
UPC: 810155160234
The VK-1 complete upper is a cerakoted, piston-driven 5.56 upper engineered for durability, accuracy, and reliability in demanding use. The 13.7″ barrel is pinned and welded with a Sons of Liberty Gun Works NOX muzzle device, bringing the overall barrel length to a legal 16″ while remaining an excellent suppressor host.
The NOX muzzle device is compatible with Dead Air Sandman Keymount, making this upper especially attractive for suppressed shooting without sacrificing rifle classification.
Key Features & Components
Patented One-Piece Bolt Carrier Group
Precision machined with a revised cam path for consistent lockup and smooth operation. Finished in thin, dense chrome for durability and reduced friction.
Enhanced Upper Rail
A continuous 15-slot, 12 o’clock Picatinny rail provides uninterrupted mounting space while reducing overall receiver weight.
Thermal-Fit Upper Receiver
Designed to maximize accuracy potential and eliminate heat-related point-of-impact shift.
VK-1 Patented Piston System
Low-profile, self-regulating piston tuned for reliability in all conditions while minimizing excess gas and recoil.
Additional Components
Sons of Liberty Gun Works NOX muzzle device (pinned & welded)
Radian Weapons Raptor™ charging handle
Continuous 12 o’clock Picatinny rail
Machined cooling flutes
Low-profile M-LOK handguard
The result is a soft-shooting, balanced upper that stays smooth and controllable—especially under suppression and sustained fire.
1× Partisan Triggers Disruptor FRT – 3-Position Drop-In
UPC: 083456001005
The Partisan Disruptor Forced Reset Trigger is a true drop-in cassette trigger designed to deliver speed, consistency, and durability without complicated fitting or gunsmithing.
Its three-position safety selector allows shooters to choose between:
Safe
Semi-Automatic
Enhanced Semi-Automatic
When installed behind the VK-1 upper, the Disruptor benefits from the upper’s consistent bolt timing and reduced gas impulse. This results in clean, reliable resets and a controlled shooting experience—even during rapid strings.
Trigger Highlights
Tool steel and 4140 chromoly construction on all wear surfaces
Trigger pull weight: 3.75–4.1 lbs
Drop-in cassette design with anti-walk pins included
Tested beyond 6,000 rounds under a USMC M27 IAR-derived test schedule
Compatible with most AR-pattern lowers
Package Includes
Disruptor FRT cassette trigger
Replacement safety selector
Anti-walk trigger pins
1× BHA Precision H2 AR-15 Carbine Buffer – 4.7 oz
UPC: 810180580861
The BHA Precision H2 buffer is the final tuning element that ties this system together. By increasing reciprocating mass, it slows bolt carrier velocity just enough to improve dwell time, extraction, and overall smoothness—especially in suppressed or higher-rate-of-fire scenarios.
When paired with the VK-1’s piston system, the H2 buffer helps deliver an exceptionally flat recoil impulse and enhanced control without compromising reliability.
Buffer Features
7075-T6 aluminum buffer body
2 tungsten weights + 1 steel weight
Total weight: 4.7 oz
Designed for standard carbine buffer tubes
Reduces felt recoil and muzzle rise
Ideal for suppressed and short-barrel setups
Performance Summary
This bundle is built around synergy. The VK-1 upper provides self-regulating gas control and consistent timing. The Disruptor FRT thrives in that stable operating environment, delivering clean resets and predictable performance. The BHA Precision H2 buffer fine-tunes the system by smoothing bolt speed and recoil impulse.
Together, they create a rifle setup that is:
Soft shooting
Highly controllable
Reliable across all rates of fire
Exceptionally well suited for suppressed use
Legal & Compliance Notice
The Partisan Disruptor Forced Reset Trigger is legal in 30+ states. Sales are prohibited in the following locations:
CA, CT, CO (Boulder County & Broomfield), DE, FL, HI, IL, MA, MD, MN, NJ, NY, RI, WA, Washington D.C., and Puerto Rico.
It is the buyer’s responsibility to ensure compliance with all federal, state, and local laws prior to purchase.
All Partisan Triggers are sold under a Final Sale – No Returns Policy and are subject to BattleHawk Armory’s Waiver and Release of Liability agreement.
