Springfield Armory 1911 TRP Operator Half-Rail .45 ACP, 5-Inch, Tritium Night Sights, Matte Black
This Springfield Armory 1911 TRP Operator Half-Rail is a forged-steel, full-size .45 ACP with the discontinued half-rail configuration and hand-fit features characteristic of the TRP line. It pairs a 5-inch Government-length, bushing-fitted barrel with fully adjustable tritium night sights and traction-focused checkering. Notable details include the NM-prefix frame, integral three-slot Picatinny rail, and an integrated magwell funnel for fast, consistent reloads.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are minor handling marks present from prior use. Please refer to the photos for a closer look.
What’s Included
- Springfield Armory 1911 Operation and Safety Manual
- 1x Wilson Combat steel single-stack 1911 8-round magazine
Please note: The Springfield Armory-branded soft case shown in photos is not included.
The TRP Operator Half-Rail features a forged steel frame and slide with a matte black finish and the series’ hand-fit attention to critical lock-up surfaces. It uses a 5-inch Government-length barrel with a barrel bushing for traditional 1911 accuracy and feel. Capacity is 8+1 in .45 ACP.
An integral three-slot Picatinny rail is machined into the dust cover, delivering the Half-Rail configuration specific to this model. Control features include an ambidextrous thumb safety and a beavertail grip safety with a memory pad. The slide is configured with front and rear cocking serrations and a lowered, flared ejection port.
Sight regulation is handled by a fully adjustable tritium rear paired with a tritium front, forming a 3-dot night-sight system. The sights are marked "USA H3 18," and the rear has an "UP" indicator. This setup supports precise zeroing while maintaining low-light visibility.
Grip and handling elements include a checkered front strap and a checkered flat mainspring housing with an integrated magazine well funnel. The pistol wears tan textured G10-style grips and uses a skeletonized delta/combat-style hammer with a skeletonized long, three-hole trigger. Slide markings include "SPRINGFIELD ARMORY" with crossed-cannons, "OPERATOR CAL .45," and vertical "TRP," with the barrel hood marked "S.A. .45AUTO."
The frame is roll-marked "SPRINGFIELD INC GENESEO IL USA" and carries an NM-prefix serial. This example represents the discontinued Half-Rail TRP Operator configuration from Springfield Armory’s USA production.

