SRT ARMS INTEGRAL 9MM UPPER

This is a review of the SRT Arms 9mm upper for the AR15/M16 weapons platform.  Four types of ammunition were tested for sound signature and velocity was recorded for each shot.  Click the picture.  (requires FREE signup, if you are not already a member)

Hearing Protection LLC Checkmate 22LR Silencer

On November 23, 2007 I reviewed the Hearing Protection LLC Checkmate 22LR silencer.  The Checkmate is a monolithic baffle silencer that uses a three lug attachment system.  It can be used either with or without a rubber wipe.  The silencer is all aluminum and can be disassembled by the end user for maintenance.  For this review I also shot two other monolithic baffle silencers for comparison.  I tested the YHM Mite and the AAC Prodigy with two types of ammunition on the P22. (requires FREE signup, if you are not already a member)

357 Magnum Suppressed Rifle

On November 18, 2007 I tested a New England Firearms Handi Rifle chambered in 357 Magnum with four 9MM silencers.  The weapons barrel has been shortened to 16.1 inches and threaded to accept the silencers using the 1/2X28 TPI threading.  In this review we tested some hand loaded 180 grain jacketed hollow points. Click the picture to read the review  (requires FREE signup, if you are not already a member)

AAC M41000 vs. YHM Stainless Phantom

5.56 Silencer Shootout

On December 23, 2007 I shot the first official 5.56mm silencer shootout.  The silencers I tested in this review are the Advanced Armament Corp. M41000 and the Yankee Hill Machine Company Stainless Phantom.  They were tested on the M4 Carbine with both 14.5" and 10.5" barreled uppers.  The ammunition tested was M193 55grain military ball with Lake City headstamp.  Also tested were some 5.56mm TTI Armory Subsonic rounds.  (requires FREE signup, if you are not already a member)

Liberty Suppressors Shoofly

On April 20 ,2008 testing resumed here at Silencer Research and I reviewed a new suppressor from Liberty Suppressors called the Shoofly.  The Shoofly is a smaller than usual diameter 22LR silencers and was designed to match the outside profile of a bull barreled Ruger 10/22. (requires FREE signup, if you are not already a member)

On May 26th 2008 I reviewed the Yankee Hills Manufacturing Stainless Steel Mite.  This particular version comes with the Quick Detach system to speed up mounting and dismounting the suppressor from the host weapon.  The silencer is full-automatic rated, disassembles for cleaning by the end user...Click the picture for the reviews.... (requires FREE signup, if you are not already a member)

Reflection Tests

I performed a test to determine what difference, if any, the testing location has to do with sound pressure level readings.  I tested 4 weapons with 4 silencers in 4 different locations on the same day.  I tested the John Norrell integral 10/22, the AAC Prodigy on the Browning Buckmark, the AAC Evolution 9 on the Sig P226T and the Gemtech M496D on the M16 with 14.5 inch barrel.  One of the main reasons for performing the test was to see if tests in an open field over grass would be similar or comparable with tests done on my official test range.  (requires FREE signup, if you are not already a member)

TAC 67 Disassembly pictures and commentary.  This now discontinued model silencer has one stainless steel blast baffle followed by 4 aluminum baffles.  Both end caps are threaded to allow complete disassembly by the end user.  The baffles used in this silencer are the ported "K" baffles.  The pictures here are indicative of around 1,700 rounds fired from a fully automatic M16 22LR conversion.  Click the picture.  This review is only of the silencer internals.  The Tac 67's sound levels are reviewed separately here.

John Norrell Arms, Inc. Custom Silencer.  This large 22 can was built by John Norrell Arms, Inc. as a custom project.  The criteria were excellent suppression coupled with a longer cleaning interval and extra weight to help control muzzle flip.  The cleaning pictures that are located in the subsequent page show around 5,000 rounds of fully automatic fire from an M16 22LR conversion.  These baffles are "M" baffles.  This silencer might be one of the largest 22LR silencers in existence.  Click the picture.  

Buckmark vs. Ruger

I performed a short test to see what Tactical Solutions barrel was quieter, as well as compare other features and options when using the Tactical Solutions barrels.  The Browning Buckmark uses the Trail Lite barrel and the Ruger series uses the Pac Lite receivers.  Both are high quality products with pros and cons.  The Tactical Solutions aftermarket products greatly reduce the weight of the factory guns.  I believe they also increase the accuracy. 

9MM SHOOTOUT and PISTOL TRIALS

On July 22, 2007 I did an extensive review of three 9mm silencers with 4 separate popular pistols.  I used 3 common ammunition types.  The test was to determine the sound pressure levels of each pistol and each silencer as well as to determine the optimum combination.  I also tested the ballistics of each ammunition type both with and without the silencers attached.  Click the picture

LRM M169 TEST RESULTS

On March 17, 2007, I tested the LRM upper on a factory Colt M16A2 registered lower receiver.  I tested 6 types of factory loaded ammunition for ballistics/velocities and for dB measurements.  The LRM 169 was loaded with 10 rounds of each type of ammo.  No jams or weapon malfunctions were noted during the entire test.  There is no way to test the LRM unsuppressed as it is an integral upper and you cannot remove the silencer for an unsuppressed reading.  Click the picture

Black Dog Machine Magazine Review

I purchased a Black Dog Machine 30 round magazine recently and gave it a try in my registered receiver M16 kit.  My M16 22LR has been heavily modified to work reliably.  I use a spring that I acquired from Lakeside Machine and cut it down so that it would run the CCI Minimag 40 grain round reliably.  I further installed a ball/detent system into the side of the bolt and rail system of the Ceiner kit to ensure proper lockup and eliminate light primer strikes.  To insure even smoother operation, I installed a Wolff extra power hammer spring in my lower receiver BACKWARDS as well.  Read more, click on the picture.

JG Bolt Lock

The JG Bolt Lock is a drop-in bolt locking mechanism for a Ruger 10/22 rifle.  I reviewed this locking system on May 19, 2007.  I tested sound reduction both with and without the bolt lock engaged and I tested both an integrally suppressed 10/22 and a factory 10/22 with a Tactical Innovations 16.5 inch threaded barrel fitted with the AAC Prodigy silencer. 

Tactical Solutions Pac Lite

I reviewed the Tactical Solutions Pac Lite.  The Pac Lite is an aftermarket replacement receiver for the Ruger family of semi-automatic 22LR pistols.  The receivers are all aluminum and are machined from a single piece of solid aircraft aluminum.  They are very lightweight.  The barrels are chrome-moly inserts.