Tag Archives: 9mm AR Build

Rainier Arms AR9 – Build Breakdown

I was asked recently on Instagram about the breakdown of my Rainier Arms AR9 build, so here is what it took to build everything up:

RAINIER ARMS 9MM BILLET RECEIVER SET – BLACK – $474.99

CMT TACTICAL UHPR HDX M16/AR15 HANDGUARD – 4.25″ – $156.75

RAINIER ARMS ULTRAMATCH 9MM FLUTED BARREL – 5″ – $154.95 (NOTE: 1/2×28 Thread Pitch)

FORTIS MUZZLE BRAKE 9MM NITRIDE (1/2X28 Thread Pitch) – $85.45

FORTIS CONTROL 5.56 – $94.95

ARISAKA FINGER STOP M-LOK – $25.00

MAXIM DEFENSE CQB PISTOL PDW BRACE FOR AR15 BLACK with SILENT CAPTURED SPRING 9MM – $498.75

HEXMAG ADVANCED TACTICAL GRIP – CURRENTLY OUT OF STOCK

ALTERNATIVE GRIP:  REPTILIA CORP AR-15/SR-25 CQG PISTOL GRIP – BLACK – $17.96

CMC TRIGGERS AR 9MM SINGLE STAGE DROP-IN TRIGGER – 3 – 3.5 LBS – CURRENTLY OUT OF STOCK – $167.99

ELITE TACTICAL SYSTEMS GROUP GLOCK 18 – 9MM 31 ROUND MAGAZINES – CURRENTLY OUT OF STOCK – $20.99

TRIJICON MRO (NO MOUNT) – $434.99

BOBRO ENGINEERING – MRO BASE W/COWITNESS RISER – $132.95

RAINIER ARMS AMBIDEXTROUS SAFETY SELECTOR SWITCH – STANDARD / SHORT (45 DEGREE) – $64.92

STERN DEFENSE 9MM GLOCK/COLT COMPLETE BOLT CARRIER GROUP SD BU9 ECHO – NIB – $169.99 (NOT PICTURED)

The total cost of this gun as it sits is approximately $2,500 and that is for the most part MSRP and parts can commonly be found at varying costs at different distributors.

Also, use code “7onefreeship” for FREE SHIPPING on your order at Rainier Arms.