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Glock 45
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Glock 45 Review

The Glock 45 is a compact crossover Gen5 pistol that pairs a full-size G17 frame with a compact G19-length slide, delivering 17+1 round capacity, superior controllability, and the latest Gen5 enhancements — purpose-built for law enforcement, duty carry, and home defense.

Specifications

  • caliber: 9x19mm (9mm Luger)
  • capacity: 17 rounds (standard); 19, 24, 31, 33 optional
  • barrel_length: 102 mm | 4.02\"
  • overall_length: 174 mm | 6.85\" 
  • height: 139 mm | 5.47\"
  • width: 32 mm | 1.26\"
  • weight_unloaded: 21.73 oz (without magazine)
  • weight_loaded: 30.34 oz (with loaded magazine) 
  • action: Safe Action® (Striker-Fired) 
  • frame: Polymer with Picatinny rail and flared magwell 
  • finish: nDLC coated black slide and barrel
  • sights: Fixed white dot front and rear (standard)" 
  • grip: Full-size G17 frame, no finger grooves, modular beavertail backstrap system
  • barrel: GLOCK Marksman Barrel (GMB) 
  • trigger_pull: ~5.5 lbs
  • slide_stop: Ambidextrous 
  • magazine_catch: Reversible and enlarged 

Pros

  • Exceptional reliability — thousands of rounds without malfunction reported by users
  • Full-size G17 grip offers outstanding control and 17+1 round capacity
  • Compact G19 slide aids maneuverability and reduces muzzle flip 
  • Gen5 GLOCK Marksman Barrel (GMB) delivers improved accuracy
  • Flared magwell enables faster, more reliable magazine changes
  • nDLC finish provides superior corrosion and scratch resistance
  • Ambidextrous slide stop and reversible magazine catch for left-handed shooters 
  • Extensive aftermarket ecosystem — sights, triggers, lights, holsters 
  • Modular beavertail backstrap system fits a wide range of hand sizes 
  • Compatible with G19 holsters for broad carry options

Cons

  • Full-size grip makes it harder to conceal than the G19 or Slimline models 
  • Available only in 9mm — no caliber options 
  • Standard factory sights are basic; most users upgrade to night sights or a red dot 
  • No manual safety — relies entirely on the Safe Action® System
  • Higher price point compared to some similarly sized competitors 
  • Polymer frame may not appeal to those preferring metal-framed pistols 

Best For

  • Law enforcement and duty carry
  • Home defense — high capacity and full-size grip for better control
  • Competitive shooting and range use
  • Shooters with larger hands who find the G19 grip too short
  • Those transitioning from the G17 who want a more maneuverable slide

Accessories

  • Weapon Lights: Streamlight TLR-7A, Surefire X300U, Olight PL-Pro Valkyrie — compatible with the Picatinny rail.
  • Red Dot Optics (MOS variant): Holosun 507C, Trijicon RMR, Leupold DeltaPoint Pro — via the G45 MOS optics adapter plate system.
  • Night Sights: AmeriGlo, Trijicon HD, Night Fision — popular drop-in upgrades over the factory sights.
  • IWB/OWB Holsters: Compatible with most G19 Gen5 holsters; also supported by Safariland, Alien Gear, Vedder, and Blackhawk.
  • Extended Magazines: Glock OEM 19-round and 24-round magazines; aftermarket options from Magpul GL9.
  • Trigger Upgrades: Apex Tactical, Overwatch Precision TAC trigger for improved pull weight and reset.
  • Cleaning & Maintenance: GLOCK OEM cleaning kit included; Hoppe's No. 9 and FrogLube CLP recommended for routine maintenance.

  • Glock
  • G45
  • Gen5
  • 9mm
  • Crossover

Categories

  • Handguns (9)

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