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Springfield Armory Backstrap Sleeve — Polymer, Black, 1-Piece — For XD-M Compact .45 ACP with #3 Backstrap (XD45383) — Informational Overview
The Springfield Armory Backstrap Sleeve is a grip fit component designed for the Springfield XD-M Compact platform in .45 ACP, specifically for configurations using the #3 backstrap (as listed). This item is identified by part number XD45383 and UPC 706397891626. It is described as a one-piece design made from polymer with a black finish, intended to fit the XD-M Compact grip system to provide a specific backstrap contour and grip circumference.
Backstrap sleeves are commonly used to tailor how the pistol fits the user’s hand, and they can also serve as replacement components if an original sleeve becomes worn, lost, or damaged.
Key Identifiers
Manufacturer/Brand: Springfield Armory
Component Type: Backstrap sleeve
Material: Polymer
Finish/Color: Black
Design: 1-piece
Compatibility (as listed): Springfield XD-M Compact .45 ACP
Backstrap Size (as listed): #3
Part Number / MPN: XD45383
UPC: 706397891626
What a Backstrap Sleeve Does (General Function)
A backstrap sleeve is intended to adjust or maintain the grip’s rear contour so the pistol can better match the user’s hand size and preferred ergonomics. In general, changing backstrap sizes can influence:
Grip circumference (how thick the grip feels)
Trigger reach (how comfortably the finger lands on the trigger)
Palm fill and overall comfort
Consistency of grip indexing for repeatable hand placement
Because hand sizes and preferences vary, modular backstrap options provide a non-permanent method of grip customization.
#3 Backstrap Designation: Ergonomics Context
This sleeve is specified for the #3 backstrap configuration. Backstrap numbering typically corresponds to different sizes/contours within the XD-M Compact system. In many modular grip systems, a higher number often indicates a larger backstrap option, though exact sizing conventions are model-specific. Users commonly select a backstrap size based on:
Preferred grip thickness and palm support
Comfort during extended handling
Control feel and repeatability
For the most accurate interpretation of what #3 represents in this specific lineup, users typically refer to Springfield Armory documentation for the XD-M Compact .45 backstrap system.
Polymer, One-Piece Construction: Practical Durability
This component is listed as a one-piece polymer sleeve. Polymer grip parts are commonly chosen because they can offer:
Low weight with good impact resistance
Resistance to moisture and temperature changes
Minimal maintenance requirements
Consistent shape retention over time
A one-piece design can also simplify alignment and installation compared to multi-piece grip accessories, depending on the platform.
Compatibility Notes: XD-M Compact .45 ACP
The listing specifies compatibility with the XD-M Compact in .45 ACP. Because Springfield’s XD family includes multiple sub-series and variations, users typically confirm:
The pistol is specifically an XD-M Compact chambered in .45 ACP
The grip system uses the sleeve format intended for XD45383
The intended backstrap size is #3
Manufacturer documentation confirms fit for the exact firearm variant
Matching the part number is generally the most reliable method to ensure correct fit.
Installation and Safety Notes (General)
Backstrap sleeves should be installed according to manufacturer instructions. Common best practices include:
Ensuring the firearm is unloaded and handled safely before installation
Confirming the sleeve is fully seated and properly retained
Verifying controls operate normally after installation and the grip feels secure
If uncertain about installation or fitment, many owners consult a qualified armorer or gunsmith.
Quick Reference Summary
Springfield Armory Backstrap Sleeve
Polymer, black, one-piece
For XD-M Compact .45 ACP with #3 backstrap (as listed)
MPN: XD45383
UPC: 706397891626
The End
