A small metal revolver strain screw part displayed on a clear plastic stand next to a paper label card that reads 'Smith & Wesson Revolver K Frame Model 15-4 .38 Special Strain Screw Square Butt Part# 15173 Used Part Old Style USA GUNS AND GEAR'.

Smith & Wesson K Frame Model 15-4 Strain Screw Square Butt Used Part 15173

$9.99
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A small metal revolver strain screw part displayed on a clear plastic stand next to a paper label card that reads 'Smith & Wesson Revolver K Frame Model 15-4 .38 Special Strain Screw Square Butt Part# 15173 Used Part Old Style USA GUNS AND GEAR'.
  • A small metal revolver strain screw part displayed on a clear plastic stand next to a paper label card that reads 'Smith & Wesson Revolver K Frame Model 15-4 .38 Special Strain Screw Square Butt Part# 15173 Used Part Old Style USA GUNS AND GEAR'.
  • A small metal screw part displayed on a clear stand in front of a white sign that reads 'Smith & Wesson Revolver K Frame Model 15-4 .38 Special Strain Screw Square Butt Part# 15173 Used Part Old Style USA GUNS AND GEAR'.
  • A small metal slotted screw with a threaded shaft, lying on a light gray textured surface.
  • A small metal slotted screw with a threaded shaft, photographed on a light off-white textured surface.
  • A small metal threaded screw or bolt with a slotted head, resting on a light gray textured surface.
  • A small metallic screw or bolt with a slotted head, photographed on a light textured surface.
  • A small used metal threaded bolt or screw with a hex head, resting on a light gray textured surface.
  • A small metal revolver strain screw part displayed on a clear plastic stand next to a paper label card that reads 'Smith & Wesson Revolver K Frame Model 15-4 .38 Special Strain Screw Square Butt Part# 15173 Used Part Old Style USA GUNS AND GEAR'.
  • A small metal screw part displayed on a clear stand in front of a white sign that reads 'Smith & Wesson Revolver K Frame Model 15-4 .38 Special Strain Screw Square Butt Part# 15173 Used Part Old Style USA GUNS AND GEAR'.
  • A small metal slotted screw with a threaded shaft, lying on a light gray textured surface.
  • A small metal slotted screw with a threaded shaft, photographed on a light off-white textured surface.
  • A small metal threaded screw or bolt with a slotted head, resting on a light gray textured surface.
  • A small metallic screw or bolt with a slotted head, photographed on a light textured surface.
  • A small used metal threaded bolt or screw with a hex head, resting on a light gray textured surface.
Smith & Wesson K Frame Model 15-4 Strain Screw Square Butt Used Part 15173

Smith & Wesson K Frame Model 15-4 Strain Screw Square Butt Used Part 15173

$9.99

Smith & Wesson K Frame Model 15-4 Strain Screw – Square Butt

Part Number: 15173
Condition: Used – Factory Original OEM Part
Caliber: .38 Special
Frame Size: K Frame

Part Details

This is a genuine Smith & Wesson OEM strain screw for square butt K Frame revolvers. The strain screw is located in the grip frame and controls mainspring tension, directly affecting trigger pull weight. This is an old-style part in used condition.

Compatible Models

Fits Smith & Wesson square butt K Frame revolvers, including:

  • Model 15-4 (primary fit)
  • Model 10 (square butt variants)
  • Model 13 (square butt variants)
  • Model 14 (square butt variants)
  • Model 64 (square butt variants)
  • Model 65 (square butt variants)
  • Model 66 (square butt variants)

Note: Round butt K Frame models use a different strain screw. Verify your grip frame configuration before ordering.

Condition Notes

Used factory original part. Shows normal wear consistent with service use. Fully functional.

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