Thanks to one of our vendors for doing this great writeup.  Here is what is required to purchase a firearm in NJ.  Appropriate links will be placed underneath.  For questions, feel free to visit our forum and ask away.

Purchase Requirements

1. Handgun purchases by
....A. NJ resident from
........(1) NJ dealer = NICS check with a P2P and Photo ID
........(2) NJ resident = face to face with a P2P with Photo ID suggested
........(3) Out-of-state dealer = must be transferred through NJ dealer - Refer 1A(1)
........(4) Out-of-state resident = must be transferred through NJ dealer - Refer 1A(1)
....B. Out-of-state resident from
........(1) NJ dealer = must be transferred through buyer's home state dealer
........(2) NJ resident = must be transferred through buyer's home state dealer

2. Long gun purchases by
....A. NJ resident from
........(1) NJ dealer = NICS check with a FPID, COE and Photo ID
........(2) NJ resident = face to face with a FPID, COE with Photo ID suggested
........(3) Out-of-state dealer = NICS check with a FPID, COE and Photo ID
........(4) Out-of-state resident = must be transferred through
............a. NJ dealer = NICS check with a FPID, COE and Photo ID or
............b. Out-of-state dealer = NICS check with a FPID, COE and Photo ID
....B. Non-resident from
........(1) NJ dealer = NICS check with a FPID, COE and Photo ID
........(2) NJ resident = must be transferred through
............a. NJ dealer = NICS check with a FPID, COE and Photo ID or
............b. Out-of-state dealer = consult buyer's home state laws


Quote:
NJ = "New Jersey"
NICS = "National Instant Criminal Background Check System"
P2P = "Permit to Purchase a Handgun and Form of Register"
ID = "Identification"
FPID = "State of NJ Firearms Purchaser IDENTIFICATION CARD"
COE = "Certificate of Eligibility"

Application for Firearms Purchaser ID Card from NJ State Police Website

Mental Health Records Consent Form from NJ State Police Website

Certificate of Eligibility for Long Guns from NJ State Police Website

Link to NJ State Police Website