607 action right side
XM16E1 "partial fence" lower, very early 603 forward assist upper with straight forge contours cutback under the port door, no forge codes & counterbored lug.
Other Sizes: Original
607 action right side XM16E1 "partial fence" lower, very early 603 forward assist upper with straight forge contours cutback under the port door, no forge codes & counterbored lug. | |
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