You need ~1.25" forward of FSB
No. The Leapers UTG Tri-rail Mount for Front Sight would interfere with the Stike industries handguard and not allow the two to be compatible.
Leapers UTG does not list the internal diameters, but this comes with 2 sets of barrel adaptors for fitment on standard barrel, bull barrel or light weight barrels.
Leapers UTG does not list the internal diameters, but this comes with 2 sets of barrel adaptors for fitment on standard barrel, bull barrel or light weight barrels.
This will fit any standard AR-15 barrel that has an A2 front sight and bayonet lug, so it should fit your Delton Sport as long as you have the triangle front sight.
This will fit any standard AR-15 barrel that has an A2 front sight and bayonet lug, so it should fit your M&P15 as long as you have the triangle front sight. Below are more specs of the item:
Material: Aluminum
Weight: 3.3oz
Rail Type: Picatinny/Weaver
No. of Rails: 3
Length: 2.6 inch
Width: 2 inch
Height: 2.2 inch