The Firing Line Forums - View Single Post - AR-15 and M-16 lower receiver questions

ROFOCALE · January 21, 2009, 06:55 AM

I have noticed in AR-15 lower receivers that the inside wall of the receiver is thicker around the area of where the full auto sear would be placed. If one was to break the rules and drill a hole for the sear.

Except the Bushmaster Carbon-15 lower receiver. it has the same thickness wall allowing (in theory) the possible placing a full auto sear.

Has there been any full auto AR-15s or M-16s with carbon lower receivers? Or has anyone else noticed a alloy receiver with out the sear block and correct thickness wall for the possible (in theory) placement of the full auto sear?

All NFA rules apply i know. Just curious.

January 21, 2009, 06:55 AM	#1
ROFOCALE Member Join Date: January 8, 2009 Posts: 21	AR-15 and M-16 lower receiver questions I have noticed in AR-15 lower receivers that the inside wall of the receiver is thicker around the area of where the full auto sear would be placed. If one was to break the rules and drill a hole for the sear. Except the Bushmaster Carbon-15 lower receiver. it has the same thickness wall allowing (in theory) the possible placing a full auto sear. Has there been any full auto AR-15s or M-16s with carbon lower receivers? Or has anyone else noticed a alloy receiver with out the sear block and correct thickness wall for the possible (in theory) placement of the full auto sear? All NFA rules apply i know. Just curious.