HK91 Polygonal v. Standard Bolt Heads

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AGG

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Here are the HK91 bolt head differences for the polygonal v. standard.

Tony
 

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  • HK91 Bolt Heads.jpg
    HK91 Bolt Heads.jpg
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  • HK91 Polygonal v. Standard Bolt Head.JPG
    HK91 Polygonal v. Standard Bolt Head.JPG
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