S+1 Handguard you can select those options

you can select those options also under the Shop tab at the top of your screen

Ejector lever is CNC machined from 4140 alloy steel

If you are interested in making your housing FRT compatible

**The Full-Size Semi-Shelf variant only has an updated HK 416 style pictogram

the ID can be reduced to about 1

S+1 Handguard you can select those optionsExtended Handguard for MP5. Made from durable polymer HP MJF PA12. Provides 25. 5 M LOK slots, including a full 5 PIC slots in front of the Sight Tower to accompany most Pistol Weapon Lights. Very lightweight. Extends . 97" past stock muzzle, so use of a suppressor, linear compensator, or blast forward device is REQUIRED! Inside Diameter is 1. 55". When using the far mlok slots, the ID can be reduced to about 1. 4". Includes mounting hardware. Torque