Description Covers up the fire selector hole on the receiver. Just dab a litle glue and you are covered.
Quick view BCI G&P Stoner 63 Enhanced and Enlarged Fire Selector Switch MSRP: Was: Now: $19.95 Choose Options
Sold Out Quick view Echo1 SG MP5 Selector Switch - External Fire Selector MSRP: Was: Now: $15.75 Out of stock