American Gunsmith

MasterPiece Arms was named the of the Official Chassis of the 2019 Precision Rifle Series season, marking the third consecutive year the company earned the distinction. MPA Chassis are machined from 6061 aluminum, have a V-bedding system, adjustable cheek piece and length of pull, a recoil pad adjustable for height and cant, Picatinny rails for optics and accessories, multiple QD sling swivel attachments, and built-in bubble level. MPA Chassis can be had for an ever-increasing list of barreled action, including Remington 700 Short and Long, Savage and Howa Short or Long Actions, Badger M2013, Mauser/Springfield, Surgeon, Stillers, and others. All are available in a variety of Cerakote finish and color options.

To give back to the shooters, MPA sponsors multiple PRS matches throughout the year, including the 2019 PRS Finale scheduled November 15-17, 2019. The Precision Rifle Series is a series of nearly 40 competitions throughout the United States with the largest being the GAP Grind having hosted over 400 competitors at the 2018 event. The Series tracks over 5,000 competitors competing in numerous Regional Series events consisting of local, one-day matches. PRS competition can be described as a blend of conventional and practical/action shooting. Rather than firing at static targets with concentric score rings from rulebook-prescribed positions, PRS shooting is done on steel targets of varying sizes and distances from varying positions and places of support, or lack thereof. The precision elements common to conventional competition are there as the targets usually subtend only a few minutes of angle and must be hit based on current environmental conditions. The action elements include ever-changing shoot scenarios and positions with elapsed times commonly used to break ties among competitors with an equal number of hits. Skilled shooters have described it as an ideal way to practice field marksmanship for designated marksmen and snipers.

“At MPA, we’ve made a commitment to the long-range shooting community and we are truly honored to once again be named the Official Sponsor of the PRS season. When you purchase one of our chassis, we never want you to regret that decision, and that is why all our chassis are backward compatible,” said Phil Cashin, owner of MPA. “We are out on the range, in the field, and at the matches with our customers, listening to their feedback and continue using it to produce a better product for them. We are committed to producing an innovative, quality-built chassis that every shooter can rely on.”

MSRP for the MPA Chassis ranges from $999-$1,150 depending on options. MasterPiece Arms uses high accuracy CNC machining, turning, laser cutting, and bending in its manufacturing process controlled by their ISO9002/TS16949 Registered Quality System. The company can be reached online at MasterPieceArms.com or 866/803-0000.

Read more in the June 2019 issue.

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George Harris, International Firearms Consultants founder, SIGARMS Academy co-founder, and former Army Reserve Marksmanship Team member, announced the official launch of the Linda Harris Memorial Scholarship administered by the United States Concealed Carry Association.
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A study of firearm homicide and suicide rates in the 10 years after California simultaneously mandated comprehensive background checks (CBC) for nearly all firearm sales and a prohibition on gun purchase and possession via misdemeanors violence policies (MVP) for persons convicted of most violent misdemeanor crimes found no change in the rates of either cause of death from firearms through 2000.

California’s comprehensive background check and misdemeanor violence prohibition policies and firearm mortality
Annals of Epidemiology, October 2018
https://www.sciencedirect.com/science/article/pii/S1047279718306161#

Received 10 July 2018, Accepted 3 October 2018, Available online 11 October 2018
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Every one of your customers and repair jobs involves a firearm and you’re as likely as anyone to be asked for advice on their use. Unless you exclusively repair wall hangers, those firearms will be used. Skillful firearm marksmanship when it counts for something important—be it hunting, defense/tactical, or similar—will likely be done under conditions of varying degrees of stress. Scientific testing has proven formal competition is the only stressor that continues to work over time. Laboratory results reveal novice parachutists on their first day of jumping experience less stress by their third jump than a competitor with a decade of experience during a contest. This has important implications for gun owners that want or need to learn how to shoot well under stress.

Top Dog: The Science of Winning and Losing by Po Bronson and Ashley Merryman shows what it takes to win and reveals what’s truly in the heart of a champion. The joy of victory and the character-building agony of defeat. Testosterone and the neuroscience of mistakes. Why rivals motivate. How home field advantage gets you a raise. What teamwork really requires. It’s about baseball, marksmanship, the SAT, sales contests, and Linux. How before da Vinci and FedEx were innovators, first, they were great competitors.
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The Department of Defense reported finding a small number of M16/M4 weapons that potentially could have an unintended discharge while manipulating the selector. TACOM (U.S. Army Tank-automotive & Armaments Command, a major subordinate command of Army Materiel Command) issued a Safety Of Use Message (SOUM #18-004) alerted the field of an unintended discharge on an M4A1 that had been through the Product Improvement Program, occurring after the operator pulled the trigger with the selector switch between the SEMI and AUTO detents (outside of detent). The weapon did not fire when the operator pulled the trigger and instead fired when the selector was moved further. The problem has been thought to be due to a “stack up” of differing tolerances from new parts added in the DOD’s product improvement program. It can also occur with civilian AR-15 firearms. As a result of this incident, an on-going investigation determined that there is the potential for all carbines and rifles noted above to behave in this way.

This potential mechanical problem is uncommon. The Army has converted 259,000 M4s to M4A1s in the past three years with the M4 carbine product improvement program and 881 have been found to exhibit this problem.

TACOM released an updated Function Check (SOUM #18-005) that easily determines if a M16/M4 (or AR-15) exhibits this problem. Begin by ensuring the weapon is clear by observing the chamber, the bolt face, and magazine well. The weapon should always be pointed in a safe direction. Do NOT perform this check with live ammunition. Perform a standard Function Check: Pull the trigger while on Safe (nothing should happen), rotate to Semi and pull the trigger (hammer should fall), hold the trigger down while racking the charging handle (hammer remains cocked) and then release and pull the trigger (hammer should fall.) For military weapons, rotate to Auto or Burst and check the full auto or three-round burst as usual.

If that passes as normal, continue by moving the selector lever to the Semi position then move the selector to a position between Semi and Auto (Burst for non M4A1’s) and squeeze the trigger. For non-full auto firearms, move the selector between settings. The hammer should drop when trigger is pulled and the selector is off Safe. If the hammer drops, repeat by re-cocking the hammer and slightly repositioning selector between settings again. Again, the hammer should drop when the trigger is pulled and the selector is off Safe. If hammer does not drop, move the selector in either direction. If the hammer drops without squeezing the trigger, this is a failure.

Do NOT use SPORTS or C-SPORTS

These additional steps updating the normal Function Check will readily determine if a particular M16/M4 or other AR-15 firearm is affected. If the Function Check to inspect for this problem is passed, there is absolutely no need to change Immediate Action procedures. The previous Department of Army Immediate Action procedure (“SPORTS”) has been since replaced in 2016 with an improved procedure described in Training Circular 3-22.9, which is a very good training manual, can be distributed without restriction, and is available for free download. References still using SPORTS or other variations are out of date.

First problem, an Immediate Action amendment is completely unnecessary if the Function Check is passed. Confirming correct mechanical function is an administrative action not something to do while engaging targets.

Second problem, SPORTS was replaced as an overly-convoluted and less effective approach than what the new Immediate Action procedure in TC 3-22.9 directs. Taking a tangled “immediate” six-step procedure and adding yet-another step defies the entire point of immediate action.

Third problem, this low percentage mechanical problem only occurs while manipulating the selector. Immediate Action is only necessary after attempting to engage target(s), meaning the weapon was already set to discharge (obviously) and there is no need to manipulate the selector while performing it.

TC 3-22.9, page 8-10

RULES FOR CORRECTING A MALFUNCTION
Do not attempt to place the weapon on SAFE (unless otherwise noted). Most stoppages will not allow the weapon to be placed on safe because the sear has been released or the weapon is out of battery. Attempting to place the weapon on SAFE will waste time and potentially damage the weapon.

Read more in the January 2019 issue.

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Gale McMillan began producing stocks in 1973 for himself to compete in Benchrest events. His fellow competitors began asking him to make stocks for their rifles, which led to starting his own company. Since then, McMillan has branched into a number of product lines. McMillan Fiberglass Stocks manufactures custom rifle stocks and accessories with product areas including Tactical, Competition, Benchrest, Hunting & Sport, and Ultralight. Customers include individual shooters, military, law enforcement, custom gunsmiths, and OEM rifle manufacturers.
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