Equipment:

Hansen's Eagle Eye
Magnus Bullets
Sierra Bullets
Botach Tactical
Hodgdon Powder Co.
Mernickle Custom Holsters
SKD Tactical
Bright Sights
Hogue Grips
Powder Valley
Speedloaders.com
Buffer Technologies
Hoffners
Pyramyd Air
Starline Brass
BulletProofMe
Holsters Plus
Precision Cartridge Inc.
Trijicon Sights
Dillon Precision
Kramer Handgun Leather
Safariland
XS Sight Systems
Ed Brown
GunBot

Training:

Defense Training Int'l, Inc.
Front Sight
Personal Defense & Handgun Safety Center
Tactical Defense Institute
Firearms Tactical Institute
Hoffners
Personal Defense Network
Tactical Shooting Academy
Greg Block Self Defense Firearms Training
Int'l Mobile Training Team
Storm Mountain Training Center
Airsoft Tactics
Gunsite
Mid-South Institute of Self-Defense

​​Services: 

Acc-u-Rail
Enterprise Arms
KPR Adcor
Wilson Combat
Briley Manufacturing Inc.
Heinie
Santurri LTD Custom Pistolsmith
GPI Custom Gunworks
Crews Custom Gunsmithing
Jim Garthwaite
STI
Natchez Shooters Supplies
Gun Broker.com

Organizations:

IPSC
NRA
USPSA
Firearms User Network
IDPA
Freeport PBA
USA Carry

​​Publications:

Soldier of Fortune
Juniors Shooters Magazine

Kids and Gun Safety: A Complete Guide

Manufacturers:

ArmaLite
Heckler &Koch
Remington
Smith & Wesson
Armscor
Henry Firearms
Rock River Arms
Springfiled Armory
Barrett
Hi-Point Firearms
Rock Island Firearms
Stag Firearms
Benelli
High Standard
Rossi
Serbu
Beratta
Kahr
Ruger
Taurus Firearms
Bersa
Kel Tec
Sako
Weatherby
Browning
Kimber
Savage Arms
Wilson Combat
Bushmaster
Marlin
Sig Sauer
Winchester
Colt
Mossberg
SKB
Walther
CZ Firearms
Para
Daisy
Glock