Small examples of 3 M4A1 URGI Variant, from closest to furthest we have:
- M4A1 URGI with: T-1 reflex sight, AN/PEQ tactical device, X400U tactical laser & flashlight, note that there's no backup iron sight, foregrip, or suppressor
- M4A1 URGI with: LMT SOPMOD stock, Backup Iron Sight, T-1 reflex sight, AN/PEQ tactical device, X400U tactical laser & flashlight, note that there's no foregrip or suppressor
- M4A1 URGI with: LMT SOPMOD stock, CompM4 reflex sight, AN/PEQ tactical device, X400U tactical laser & flashlight, note that there's no backup iron sight, foregrip, or suppressor
- All M4A1 URGI variant uses Geissele ACH charging handle, Geissele SMR MK16 13.5 inch M-LOK handguard, and SureFire SF4P flash hider as its core attachments