Justin Richard runs through the disassembly and reassembly of the D9 suppressor in just over 90 seconds. There's really not much to it

Disassembling the D9 is easy (especially if you have a little coaching). Justin Richard, manager and gunsmith at Dave's Gunshop in Lafayette, LA has a go at it.

This one's a little longer than we like to publish, but there's a lot of info here. In this video series, we ask very experienced shooters to compare the Acadian Armament D9 suppressor to top-tier conventional suppressors recommended for use with the MP5. In this evaluation, a LE agency SWAT armorer and team members familiar and practiced with the MP5 put three suppressors through the wringer on the full and K versions of the MP5. These weapons are Zenith Z-5RS and Z-5P. D9 - The suppressor made for the MP5.

Justin Richard, manager and gunsmith at Dave's Gunshop in Lafayette LA, disassembles the D9 suppressor with minimal guidance. The followup video takes the viewer through disassembly and reassembly in just over 90 seconds.

This test illustrates the remarkable ability of the Defender 556 to prevent baffle strike damage. Defender 556 is partially removed from the rifle and shots are fired at 3, 5, 6, 7, 8, and 9 turns off from the muzzle thread shoulder. Point of aim is the same for all shots. 16" Mossberg Patrolman in .223 55gr .223 ammo Target is at 50 yards.

Defender after almost 800 rounds from a 7.5" AR in SWAT live-fire training.

Everything's easy if you know how. If you want to open up your Predator Lynx, Defender, or Pantera silencer (suppressor; whatever), you need to watch this. Other videos will cover cleaning, etc. If you have questions, please email support@AcadianArmament.com

Any suppressor will change the performance of a gas-operated weapon. In fact, changing ammo or even simply changing a flash hider, BCG or other components will have an effect on cycling. Many users prefer to "tune" their weapon to the "system" as a whole. This video demonstrates the effect of changing the weight of the buffer system on full-auto cycling rates, blow-back and ejection. The JP QuietSpring can be configured with one, two or three heavy tungsten weights. JP designates those configurations as H1, H2 & H3. The host weapon in the video is a Colt 6920 M4-A1 16" firing 10 rounds of .223 55gr ball ammo. The adjustable gas block was optimized for each condition before filming.