I took the advice to purchase one for my PTR and wanted to know if I bought the wrong model. It's not a hk21 "style" but a hk21/11 handle. It's not the hand guard since I didn't have one installed while checking. It's rounded with a small spur, not a polygonal shape like the PTR handle. Any info would be great. Also, I'm not a machinist and need laymen terms. Thanks in advance.
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