BE A FORCE
Onslaught, Insight, Phase Complete O-Ring Rebuild Kit

Onslaught, Insight, Phase Complete O-Ring Rebuild Kit

Acculock Lifetime Insert Replacement Program

 If any of your Field One Paintball Acculock Inserts are damaged for any reason, we’ll replace it with the same or similar insert for as long as you own your kit. Just return your damaged insert to Field One Paintball at the address below with your name, address, contact info and a copy of your purchase receipt or other proof of purchase. Also include a check for $7 USD payable to Field One Paintball to cover shipping and processing.


Send your damaged insert to:


Field One Paintball

Attn: Acculock Replacement Program

34 De Luca Place Suite D

San Rafael, CA 94901


This offer is only valid for the original owner and is not transferable. Limited to one replacement of each insert per customer. Offer void where prohibited or otherwise restricted by law. Field One Paintball LLC reserves the right to modify or discontinue the terms of the Acculock Lifetime Insert Replacement Program at any time. Program does not apply to product requiring shipping outside of the United States.


Thanks again for your support. If you have any questions about the AccuLock Barrel System, please feel free to contact us by phone or email.

-F1 Team



This kit provides 1 complete o-ring rebuild for the marker and Cam Drive ASA.  See below for description of contents and installation location. To view the Onslaught/ Insight NG instruction manual click HERE.

Onslaught/Insight Complete O-Ring Rebuild Kit- Provides one complete o-ring rebuild for the marker and Cam Drive ASA
quantity location
1x2mm O-Ring 1 Ram Housing to Back Block
1x3mm O-Ring 2 Main Body to Manifold
1x4mm O-Ring 3 Grip Frame to Body/ Ram Shaft to Pillow Bolt(Friction only)/ASA Main Seal Support
1x4.5mm O-Ring 3 ASA to Grip Frame/ Main Body to Manifold
1x7.5mm O-Ring 1 Main Body to Manifold
1x9mm O-Ring 1 Main Body to Manifold
1x13mm O-Ring 1 Ram Housing to Gas InterLock Housing
1.5x20mm O-Ring 1 Main Body to Reg Center
005 O-Ring 1 ASA Inside Main Seal
008 O-Ring 1 Ram Shaft Bumper
010 O-Ring 5 Ram Shaft Rear/ Inside of Brass Shutoff
011 O-Ring 3 Gas InterLock Button/Reg Center to Main Body/Belville Spring Stack Retainer
014 O-Ring 1 Inside Ram Housing
015 O-Ring 3 Bolt/ ASA Main Seal
016 O-Ring 1 HPR Piston
018 O-Ring 1 Reg Center to Reg Base
020 O-Ring 1 Volume Chamber
021 O-Ring 4 Outside of ram Housing/ Between Ram Housing and Volume Chamber
108 O-Ring 1 Inside of Brass Shutoff
114 Square O-Ring 1 Front of Volume Chamber-Bumper
U-Cup 3/8x9/16x3/32 O-Ring 1 Inside Front of Volume Chamber
2x20mm O-Ring 1 Inside Back of Volume Chamber
Packaging: Single Zip Lock Bag