Recent content by UhKlem

The Harvester EVO appears to be an evolution of the SilencerCo Omega-300. A version of it was selected by FBI HRT for .308. The EVO has known HUB or ‘bravo’ semi-universal rear tube threads of 1.375” x 24 tpi allowing many mounting/muzzle device options. The Omega-300 suppresses well for its...

Wet designs aren't as popular because of blowback and in the case of greases smoke. Water based coolants don't smoke but are messy and gunk up hosts. Most supersonic centerfire cans don't recommend coolant for risk of bore obstruction and pressure spikes. Plus the sonic crack dominates the...

At the most basic level of design the ideal gas law is relevant. P is proportional to nRT/V. So reducing temperature via increasing heat sinking with finned features or latent heat of evaporation of sacrificial coolants reduces the peak pressure as does a larger containment volume. The rest of...

I always carry my paperwork and point out the stamp tax that for more principled ancestors led to dumped tea in Boston harbor. It's a teachable moment. :thumbup: I blacken out the address on my carry copies. I had a friend lose a Form 4 copy for a valuable MG and for a year or two he always...

Silencerco went to clipped parabolic cones in the improved Warlock II and Spectre II replacing the Omega style baffle. Clipped parabolic cones are used in just about all Silencerco designs now and variants thereof are used by Griffin, Rugged, and a few others in center fire and pistol cans, as...

A soda blaster setup is ideal for your cleaning of carbon and lead deposits with no detrimental substrate abrasion on even unanodized aluminum. You can buy bulk baking soda and a blasting gun from Harbor Freight or may make a Venturi pickup tube blaster with any air nozzle and a length of...

Thanks for doing this work. A friend who mainly shoots bolt action .22lr recently got his Form 1 approved for a .22 suppressor and he has been long stuck in analysis-paralysis over build materials and making the can easy to take down and clean. I've been telling him that I've seen sealed .22...

It has been surmised that there is the potential that trusts like Silencershop's one shot trust (single serial number per trust) carry the benefit of making an item easier to sell or gift. This is done by amending the trust so that the new owner is sole trustee and beneficiary. This precludes a...

I'd like to see someone build a lightweight, booster less 3 lug attach muzzle blast tamer for a 357 Sig. It's not worth the $200 to Form 1 or Form 4 something like that now, but if suppressors go Title 1 then instead of people chasing decibels for the ultimate in suppression, practical sized...

Palmetto State Armory (PSA) has some fine 300BO uppers at reasonable prices when on sale. You likely don't want piston uppers for quiet suppressed shooting as the Pistons release higher pressure noisier gas near the muzzle than the lower pressure gas from the action of DI ARs. Piston uppers are...

Finding parts for retro A1 style ARs is tough. Nodak Spud might have items that appeal but they won't be cheap. If you otherwise don't find ARs that interesting I'd recommend a 6.5 Grendel build. It's a very capable cartridge. Then pick up a cheap PSA 556 upper for common ammo plinking. Even...

FFP prevents accidentally using uncalibrated holdovers or ranging because the subtensions are independent of the power ring setting. The downside is the reticle can be tiny at low power and fat at high power. They both work but a good FFP reticle is a little faster and easier to use. How...

I like Twang N Bang. He covers bows and firearms and his videos always have a short preview and no long winded obnoxious animations or annoying music. Plus he has a great dog and a great light attitude and friendly delivery. NFA Review channel is also a great reviewer with exceptional camera...

First AR build I wouldn't sweat your first AR build too much. It's a learning experience and chances are it won't be your only build. And being modular any perceived deficiencies or mistakes can be fixed later. I'd recommend a mid length gas system for 16" barrels for hand guard space, sight...