Springfield WW2 Model vs. Mil-Spec vs. Loaded
Courtesy of 1911forum.com
Basic Descriptions:
WW2 (GI) Model: Pistol closely replicates the basic 1911A1 as used by the US military for seven decades. Features:
- high wall ("narrow") ejection port
- low profile GI sights
- lanyard loop on mainspring housing
- vertical cocking serrations on slide
Mil-Spec: Pre-dated the G.I. model, adds some popular features/upgrades
- stainless barrel and bushing (some models)
- loaded chamber indicator (some models)
- lowered and flared ejection port
- high profile 3-dot sights
- beveled magazine well
- loss of the lanyard loop on mainspring housing
- forward-raked cocking serrations on slide
Loaded: An upgrade from the Mil-Spec with even more of the most popular features/upgrades
- beavertail grip safety
- Novak sights
- ambidextrious thumb safety
- long 3 hole trigger
- full length guide rod (2-piece)
- front cocking serrations
- flat mainspring housing
Some one else will have to chim in with whats additional for the TRP but there are your basic 3 SA 1911 models.