Shotgun Forend

is it illegal to saw off the barell of a shotgun even if its not shorter than 18 inches?

im putting a pistol grip on the forend and the rear of my gun and i wanted to get a shorter barell

From ATF: A shotgun is a firearm designed to be fired from the shoulder and designed to use the
energy of the explosive in a fixed shotgun shell to fire through a smooth bore either a number of
projectiles or a single projectile for each pull of the trigger.10 A shotgun subject to the NFA has a barrel
or barrels of less than 18 inches in length. The length of the vast majority of shotgun barrels is measured from the muzzle of the barrel to the face
of the breech on a line parallel to the axis of the bore. In the case of a shotgun having a chamber(s) not
an integral part of the barrel, such as a revolving shotgun, the barrel length is measured from the muzzle
to the front of the separate cylinder and does not include the chamber. NOTE: Any muzzle attachment
such as a compensator, choke device, muzzle break, etc., is not included in the barrel length
measurement unless the attachment is permanently affixed to the barrel. Acceptable methods for
permanently attaching a device to a shotgun barrel are deep penetrating, full fusion, gas or electric steel
seam welds or high temperature silver solder.
A weapon made from a shotgun is a shotgun type weapon that
has an overall length of less than 26 inches or a barrel or barrels of less than 18 inches in length.
The overall length of a firearm is the distance between the muzzle of the barrel and the rearmost portion
of the weapon measured on a line parallel to the axis of the bore.

If the weapon has a folding stock then overall length is measured with the stock in the extended position.

As long as the barrel is over 18″ (measured from muzzle to breach face) and the overall length is over 26″ you are legal and you are free to make your modifications. If you are going to be under either of those measurements you have to file an ATF Form 1 and get approval before you make the modification.

ATI Talon 5-Sided Aluminum Shotgun Forend Install

UTG 2-in-1 Tactical LED Flashlight with Red Laser $55.50 The mounted laser offers 360 degrees of rotation, with 16 lockable positions. This two-in-one tactical CREE Q5 LED flashlight and laser light combination from UTG provides instant spot focus for clear downrange object identification. A 16-position adjustable, removable, TS-rated precision red laser enables rapid target acquisition. The flashlight has a tail push-button momentary switch and en…

The Mako Group Shotgun Barrel Flashlight Mount $13.95 Features: Universal Barrel Design. Cleaver Removable Insert to fit most barrels. Great for Flashlights and Lasers. Complete with Sling Swivel Stud. Made from tough Glass-Nylon Composite….

SureFire 6V LED Tac Light – Mossberg 500, & 590, 7.75in Forend 623LM $289.99 SureFire 6V LED Tac Light – Mossberg 500, & 590, 7.75in Forend Tube…

Mossberg 500,590 & 835 Overmolded shotgun stock kit w/ forend-12 ga-RH …

Tactical shotgun Forend …

Surefire 6V LED Shotgun Forend Weaponlight for Mossberg 500&590 w/ 14in Barrel 621LMG $329.99 Surefire 6V LED Shotgun Forend Weaponlight for Mossberg 500&590 w/ 14in Barrel 621LMG…

SureFire 618LMG Remington 870 Shotgun Forend 100-Lumen LED Weapon Light with Constant-On & Disable Switch $308.00 These forends replace the original factory forend of your shotgun and feature virtually indestructible compact LED heads with precision-molded Total Internal Reflection (TIR) lenses. These produce a tighter, farther-reaching beam than our reflector models but are still well-suited for close- to mid-range engagements. Our dedicated forends for shotguns and submachine guns are available with small b…

SHOTGUN SIDE FOLDING STOCK AND FOREND …

UTG Deluxe Ergonomic Foregrip, Black $9.95 Deluxe ergonomic foregrip Non-slip Complete with battery compartment, pressure switch housing and Picatinny mounting deck…

UTG Ambi Foldable Tactical Foregrip with 5 Adjustable Positions $11.80 Foldable tactical foregrip with 5 adjustable positions to allow for versatile shooting positions and enhance target lock performance under toughest environments Press the position button to fold forward/backward and release the button to lock in desired position Designed to mount on any picatinny/weaver rail with ergonomic and non-slip features for superior control of weapon Ambidextrous design, c…