3D preview of 9mm Blowback Bolt
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Interactive 3D model of 9mm Blowback Bolt

Mechanical parts

9mm Blowback Bolt

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Bounding box
30.0 × 30.0 × 140.0 mm
Engine
Precision B-rep
Parameters
15
Published
October 17, 2026

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The prompt

Design a 9mm blowback bolt

Parameters

NameValueRange
Bolt Body Diameter30 mm20 – 45
Bolt Length140 mm60 – 250
Rim Chamfer1 mm0.2 – 2
Case-Head Recess Diameter10.4 mm9.5 – 14
Case-Head Recess Depth1.5 mm0.5 – 5
Firing Pin Hole Diameter2 mm1 – 4
Extractor Slot Width4 mm2 – 8
Extractor Slot Depth8 mm3 – 25
Ejector Slot Width3 mm1.5 – 6
Ejector Slot Depth16 mm5 – 40
Cocking Handle Hole Dia8 mm4 – 12
Cocking Handle From Front110 mm20 – 200
Sear Notch Length6 mm2 – 15
Sear Notch Depth2.5 mm0.5 – 5
Sear Notch From Rear20 mm5 – 100

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.

9mm Blowback Bolt - Free CAD Model (STEP, STL) | TextoCAD