Hardened Arms 10.5" Black Widow Monocore Suppressor Upper Package in 300 Blackout utilizes a pinned fully serviceable monocore design. The 300 Blackout cartridge is a unique round that allows the shooter to choose between supersonic and subsonic ammunition depending on their mission. The Black Widow is designed to be pinned to a 10.5" 300 Blackout barrel bringing the total barrel length past 16". This compact pinned package allows for the upper to be run on a rifle lower without needing two tax stamps because it qualifies as a rifle ($200 ATF tax stamp required for suppressor).
Barreled Upper Assembly:
Hardened Arms M4 Feed Ramp Flat Top Receiver
Black anodized mil-spec finished upper receiver
Feed ramps for increased feeding reliability on barrel and upper
Laser etched T-Marked upper receiver
Chrome Moly .300 Blackout High End Barrel
Black Melonite Finish
Chambered in .300 Blackout
10.5" HBAR Profile barrel with M4 Extension
.750" barrel diameter at gas block
5/8x24 threaded muzzle/barrel
Barrel dimpled to secure gas block
Pistol length gas system
15" Quad Rail
Black Widow Features:
User Serviceable Monocore Design
Sound Reduction: 37 dB (Subsonics)
Caliber: 300 Blackout Supersonic and Subsonic only
Full Auto Rated
Material: Steel Alloy
Mount: Direct Thread
Fits any mil-spec AR15 lower receiver.
The Black Widow design began it's life in the mind of the Owner of Hardened Arms as a challenge to create an effective and reasonably priced suppressor for the 300 Blackout caliber. The suppressor can be threaded and pinned and is monocore design made for ease of use for the operator. This suppressor has been thoroughly abused by the employee's here both semi and full auto in multiple calibers and it has stood the test of time. We have abused and then abused some more to see how it would stand up against the grains of time and were amazed at the fact we were not able to break it - no matter what we did.