VOL 13, NO 2 | MAR/APR 2021 VOLUME 13 NUMBER 2 | MAR/APR HEADSPACE OPTIONS AND THEORY ADVANCED 50MM 2021 CANNON CALIBER WEAPONS AND AMMUNITION PISTON- DRIVEN EXCELLENCE SIG SAUER MCX Rattler Canebrake Desirable Military Armament Corporation M10 III/NFA Fully Transferable Machine Gun Submachine Gun, Class III/NFA Fully Transferable Machine Gun Submachine Gun, Class III/NFA C&R Fully Transferable Machine Gun Breda M37 Belt Fed Machine Gun, Class III/NFA C&R Fully Transferable “Fallschirmjaegergewehr” Bayonet, Class III/NFA Fully Transferrable Machine Gun Automatic Class III/NFA C&R Registered M2 “30 Cal” Light Machine Gun with Tripod ROCK ISLAND Rock Island Arsenal/ John Stemple AUCTION COMPANY® Browning Model 1917A1 Belt Fed Belt Fed Machine Gun with Machine Gun, Class III/ PREMIER AUCTION Accessories, Class III/NFA Fully NFA Fully Transferable Fine, Historic, & Investment Grade Firearms Transferrable Machine Gun MAY 14TH, 15TH, & 16TH OVER 100 CLASS III ITEMS Desirable Colt Model 1921 Military Thompson Submachine Armament Gun with Transport Corporation M10 Case and Extra Submachine Gun, Magazines, Class III/ Class III/NFA Fully Transferable NFA Fully Transferrable Machine Gun Machine Gun Heckler & Koch/Fleming Firearms G3 Machine Gun with Michael’s Machines HK21 SAW Conversion, Class III/NFA Fully Transferable Steyr “bnz” Code MP-44 with Scope and Accessories, Class III/NFA Fully Harrington Transferrable Machine Gun & Richardson Reising Model 50 Submachine Gun, Class III/NFA C&R Fully Transferable CATALOG ONLINE NOW! Machine Gun Fully Automatic Heckler To Order Your Full-Color 3-Volume Set Catalog & Koch HK MP5 Machine Call (800) 238-8022 ($70 plus sales tax) ® Gun Conversion, with Class ALWAYS ACCEPTING QUALITY CONSIGNMENTS - III/NFA Fully Transferable Undisputed World Leader for Quality Fleming Auto-Sear in a ONE GUN OR AN ENTIRE COLLECTION! Collectable and Antique Firearms Contact our Acquisitions Department H&K/Fleming Firearms 800-238-8022 or Email: [email protected] WWW.ROCKISLANDAUCTION.COM Host Gun 7819 42nd Street West, Rock Island, IL 61201∙ PHONE: 309-797-1500 ∙ FAX: 309-797-1655 ∙ EMAIL: [email protected] ∙ Fully Licensed Class III Auctioneer Desirable Military Armament Corporation M10 III/NFA Fully Transferable Machine Gun Submachine Gun, Class III/NFA Fully Transferable Machine Gun Submachine Gun, Class III/NFA C&R Fully Transferable Machine Gun Breda M37 Belt Fed Machine Gun, Class III/NFA C&R Fully Transferable “Fallschirmjaegergewehr” Bayonet, Class III/NFA Fully Transferrable Machine Gun Automatic Class III/NFA C&R Registered M2 “30 Cal” Light Machine Gun with Tripod ROCK ISLAND Rock Island Arsenal/ John Stemple AUCTION COMPANY® Browning Model 1917A1 Belt Fed Belt Fed Machine Gun with Machine Gun, Class III/ PREMIER AUCTION Accessories, Class III/NFA Fully NFA Fully Transferable Fine, Historic, & Investment Grade Firearms Transferrable Machine Gun MAY 14TH, 15TH, & 16TH OVER 100 CLASS III ITEMS Desirable Colt Model 1921 Military Thompson Submachine Armament Gun with Transport Corporation M10 Case and Extra Submachine Gun, Magazines, Class III/ Class III/NFA Fully Transferable NFA Fully Transferrable Machine Gun Machine Gun Heckler & Koch/Fleming Firearms G3 Machine Gun with Michael’s Machines HK21 SAW Conversion, Class III/NFA Fully Transferable Steyr “bnz” Code MP-44 with Scope and Accessories, Class III/NFA Fully Harrington Transferrable Machine Gun & Richardson Reising Model 50 Submachine Gun, Class III/NFA C&R Fully Transferable CATALOG ONLINE NOW! Machine Gun Fully Automatic Heckler To Order Your Full-Color 3-Volume Set Catalog & Koch HK MP5 Machine Call (800) 238-8022 ($70 plus sales tax) ® Gun Conversion, with Class ALWAYS ACCEPTING QUALITY CONSIGNMENTS - III/NFA Fully Transferable Undisputed World Leader for Quality Fleming Auto-Sear in a ONE GUN OR AN ENTIRE COLLECTION! Collectable and Antique Firearms Contact our Acquisitions Department H&K/Fleming Firearms 800-238-8022 or Email: [email protected] WWW.ROCKISLANDAUCTION.COM Host Gun 7819 42nd Street West, Rock Island, IL 61201∙ PHONE: 309-797-1500 ∙ FAX: 309-797-1655 ∙ EMAIL: [email protected] ∙ Fully Licensed Class III Auctioneer CONTENTSMAR/APR 2021 | VOLUME 13 | NUMBER 2 5472 12 SUBSCRIBE TODAY sadefensejournal.com | VOL 10, NO 5 VORTEX’S VOLUME 10, NUMBER 5 | SEPTEMBER 2018 SEPTEMBER | 5 NUMBER 10, VOLUME VOLUME 10, NUMBER 5 | SEPTEMBER 2018 SEPTEMBER | 5 NUMBER 10, VOLUME AMG UH-1 HOLOGRAPHIC SIGHT 95 95 1 Year–$39 (6 Issues) 2 Years–$74 (12 Issues) Go to www.sadefensejournal.com/wp/subscribe or call 702-565-0746 OPTOELECTRONICS Night Vision and Thermal Sights DRONE DEFENSES Visit smallarmsreview.com/subscribe to bundle with Small Arms Review* Nammo Takes Down UAVs COVER–SADJV10N5.indd 1 SMALL ARMS DEFENSE JOURNAL publishes 6 issues per year. Please allow 4-8 weeks for delivery of your first issue. Form is for U.S. addresses. 7/3/18 9:02 AM Foreign subscribers please visit www.sadefensejournal.com/wp/subscribe *Subscribers to SAR get access to the smallarmsreview.com archives. SADJ VOL. 11 NO. 5 | 4 | SEPT/OCT 2019 SADJ VOL. 13 NO. 2 | 4 | MAR/APR 2021 ON THE COVER sadefensejournal.comVOL 13, NO 2 | MAR/APR | VOL 12, 2021 NO 3 CoverDesigned features for Maxim a SIG Defense’sSAUER® MCX PDX Rattlerand MDX VOLUME 13 NUMBERVOLUME 12, 2 | MAR/APR NUMBER 3 | HEADSPACEORDNANCE ODDITIES OPTIONSFROM THE LATE SBRsCanebrake, Tumble with Upon SIG Impact™ SAUER (TUI)ROMEO8T defensive AND THEORYVIETNAM WAR MAY/JUNE ADVANCEDAMMO ADVANCES: 50MM ammunitionoptic, SureFire has patentedLLC Scout Next Light® Generation flashlight tech - AN IN-DEPTH REVIEW 2021 2020 CANNON CALIBER WEAPONS AND nology. The TUI solid copper projectiles have a AMMUNITION and BCM® Rail Panel Kit. www.sadefensejournal.com solid tip without any flutes/grooves/slots or other PHOTO: SIG SAUER / DREW STOECKLEIN special effects that might impede successful PHOTOGRAPHY PUBLISHER feeding, firing and cycling out of the weapon. PISTON- See story on page 12. Chipotle Publishing, LLC DRIVEN PHOTO: MAXIM GENERAL MANAGER EXCELLENCETUMBLE UPON IMPACT See story on page 48. Deborah Shea SIGMAXIM SAUER DEFENSE’S MCX Rattler OPTIMIZED Canebrake SBR DEFENSIVE AMMO SADJ Cover V12N3.inddV13N2.indd 17 4/22/214/7/20 14:0110:25 OWNER/PUBLISHEROWNER/PUBLISHER CONTRIBUTING WRITERS WRITERS MeganMegan M. VukodinovichVukodinovich Robert Bruce FEATURES Todd Burgreen EDITOR-IN-CHIEFEDITOR-IN-CHIEF Alton P. Chiu PISTON-DRIVEN EXCELLENCE: SIG SAUER MCX RATTLER CANEBRAKE TECHNICALTECHNICAL EDITOREDITOR Dr. Philip H. Dater 12 TODD BURGREEN DanDan SheaShea Leszek Erenfeicht Erenfeicht Paul EvancoeEvancoe HEADSPACE OPTIONS AND THEORY TECHNICAL EDITOREDITOR MichaelWalter Haland, Heidler Major (RET). 20 SAL FANELLI & JEFF SIEWERT FrankLisa Iannamico Weder HeebumMichael Heidler Hong JeanHeebum Huon Hong COPYART DIRECTOR EDITORS FrankJean Huon Iannamico Megan VukodinovichAdam Bucci N.R.Frank Jenzen-Jones Iannamico Lisa Weder RichardN.R. Jenzen-Jones D. Jones PRODUCTION COORDINATOR GeorgeRichard D.Kontis, Jones P.E. ARTRachel DIRECTOR Hoefing JulioGeorge A. Montes Kontis, P.E. Adam Bucci TomDickson Murphy Ly TECHNICAL CONSULTANT RonaldoJulio A. Montes Olive Tom Murphy PRODUCTION COORDINATORFrank Iannamico W. Hays Parks Ronaldo Olive Rachel Hoefing Christopher M. Rance DISTRIBUTION RobertW. Hays G. Parks Segel Christopher M. Rance DISTRIBUTIONSara Lund Dan Shea MichaelRobert G. Smallwood Segel Sara Lund MilesDan Shea Vining ADVERTISING AUSTRALIA IS OPEN FOR BUSINESS: THE LAND FORCES 2021 OlegMichael Volk Smallwood MeganADVERTISING Vukodinovich 24 EXPOSITION TonyMiles WilliamsVining Megan VukodinovichJayne Wynes JasonOleg Volk M. Wong, JD TRAIN FOR A REFLEX RESPONSE +1.702.565.0746Jayne Wynes Anthony Wicks 26 SETH R. NADEL [email protected]+1.702.565.0746 Tony Williams [email protected] Jason M. Wong, JD ADVANCED 50MM CANNON CALIBER WEAPONS AND AMMUNITION 30 JAY BELL ZENITCO PERST-3 GREEN+: RUSSIAN PEQ ALTERNATIVE CHIPOTLE PUBLISHING, LLC 36 ALTON P. CHIU 631 N. Stephanie St. #282 THE PKM: A SYSTEM OF EXTREME RELIABILITY Henderson, NV 89014 42 LYNNDON SCHOOLER T: 702.565.0746 | F: 702.567.2425 [email protected] BAD BULLETS … OK, NOT BAD. JUST MISUNDERSTOOD! www.chipotlepublishing.com 48 TERRY EDWARDS For Small Arms Defense Journal article submissions, please con- FN 509 COMPACT TACTICAL: EVOLUTION AT WORK tact Rachel Hoefing at: [email protected]. For Small 56 TODD BURGREEN Arms Defense Journal New Products submissions, please send to: [email protected]. U.S. SMALL-CALIBER DUMMY ROUND DEVELOPMENT Small Arms Defense Journal is published by Chipotle Pub- 62 JAY BELL lishing, LLC, 631 N Stephanie St. #282, Henderson, NV 89014 THE RUSSIAN RPG-30 GRENADE LAUNCHER: A ONE-TWO PUNCH USA. Telephone: +1.702.565.0746 Fax: +1.702.567.2425. Email: [email protected]. Copyright ©2020.©2021. All material 64 LYNNDON SCHOOLER contained in Small Arms Defense Journal is copyrighted, and SUREFIRE XVL2-IRC: A TALE OF TWO SPECTRUMS no portion may be reproduced in any way without the written permission of the publisher. US subscriptions are USD $39.95 for 66 ALTON P. CHIU 1 year (6 issues). 1 year international first class is USD $69.95. Sub- THE COLT M45A1 PISTOL & AMERICA’S ROMANCE WITH THE 1911 scription prices are subject to change without notice. 72 JOSH WAYNER Small Arms Defense Journal is not responsible for the misuse of any information contained in this publication. We do not endorse any item or practice offered in any ad or article in this