In this episode we go over the proper installation of the Gen 3 series of free float hand guards from Midwest Industries. This will apply to both the Mlok a. Installing a free float handguard.
- Ar-15 Installing Free Float Handguard
- Ar-15 Installing Free Float Handguard Ar 15
- Installing Free Float Handguard Ar-15
- Ar-15 Installing Free Float Handguard M P Sport 2
Tools for Installing AR15 Free-Float Handguards
REQUIRED TOOLS:

VISE
 For clamping the upper receiver assembly. Recommend 5” vise as a minimum 
UPPER RECEIVER VISE BLOCK (AR15)
 To hold the upper receiver securely. Usually a two-piece plastic clamshell design. 
SAFETY GLASSES
For eye protection. Look for Z87 rating as a minimum. 
BALL PEEN HAMMER
 Used with punches. Four to eight ounces recommended. 
#2 (5/64”) ROLL PIN HOLDER
 To start gas block roll pin. Makes starting roll pins MUCH easier. 
#2 ROLL PIN PUNCH
 To drive gas block roll pin in and out. 
CUP TIP PUNCH
 For driving out taper pins without damage. 
ARMORER’S BENCH BLOCK
 Steadies barrel assembly and gas block when driving roll pins. Also used for assembly of upper receiver and charging handle assembly. 
ARMORER’S WRENCH
 For removal/installation of barrel nut and flash hider (also used on stock and buffer tube). 

½” TORQUE WRENCH
 For proper tightening of barrel nut. Can also use 3/8” torque wrench with a ½” adapter. Use a torque wrench with a range between 30-80 ft-lb. 
STRAP WRENCH
 To tighten and loosen free-float handguards. Use a rubber type to prevent scratching the handguard. 
LEVEL
To inspect relative alignment of handguard rail and upper receiver rail. A small handheld level or one attached to a machinist’s square works great.
Related Items
OPTIONAL TOOLS:
HANDGUARD REMOVAL TOOL
 Used to compress the delta ring spring when installing or removing two-piece handguards
SOFT-FACED MALLET
 A plastic dead-blow type works well for loosening stubborn front sight gas blocks 
HEX KEY
 Also called an allen wrench. Used for removing & installing clamp-on type gas blocks.
REQUIRED PARTS:
Ar-15 Installing Free Float Handguard
LOW PROFILE GAS BLOCK
 Replaces front sight gas block and fits under free-float handguards 
GAS TUBE ROLL PIN (5/64”)
 Retains the gas tube inside the gas block 
Ar-15 Installing Free Float Handguard Ar 15
CRUSH WASHER
 For barrels with flash hiders or other muzzle devices. 
Installing Free Float Handguard Ar-15
LITHIUM MOLY GREASE
 High-pressure grease applied to the barrel nut in order to prevent galling of the upper receiver and barrel nut threads. 
Ar-15 Installing Free Float Handguard M P Sport 2
MEDIUM STRENGTH THREADLOCKER
 Used to prevent loosening of lock ring, handguard and other metal hardware.