Upper Receiver Vise Block for AR15 / M16 Platforms

The IMI Defense™ Upper Receiver Vise Block is a heavy-duty gunsmithing tool engineered to securely support AR15 and M16 upper receivers during firearm assembly, maintenance, cleaning, and repair operations. Designed to provide stable clamping without damaging the firearm, this professional-grade vise block is an essential tool for armorers, gunsmiths, and firearm enthusiasts.

Constructed from high-strength solvent-resistant structural polymer, the vise block surrounds and supports the upper receiver both internally and externally to distribute clamping force evenly. This design minimizes the risk of crushing, twisting, distortion, or finish damage while performing maintenance procedures such as barrel installation, barrel removal, and torque-intensive assembly operations.

The reinforced support structure transfers barrel nut torque forces directly into the block rather than the receiver itself, helping protect critical receiver components including the barrel detent pin and receiver detent notch during assembly or disassembly.

Compatible with both carry handle and flat-top AR15/M16 upper receivers, the IMI Defense™ Upper Receiver Vise Block allows secure mounting in a standard bench vise for safe and efficient one-person gunsmithing operations.

Designed for durability, stability, and professional firearm maintenance, the IMI Defense™ Upper Receiver Vise Block provides dependable support for AR-platform assembly and servicing.

Features & Benefits

• Heavy-duty upper receiver vise block design
• Compatible with AR15 and M16 upper receivers
• Supports both carry handle and flat-top receivers
• High-strength solvent-resistant reinforced polymer construction
• Surrounds and supports receiver internally and externally
• Helps prevent crushing, twisting, or receiver distortion
• Transfers torque forces away from the receiver
• Reduces risk of damage during barrel installation and removal
• Protects barrel detent pin and receiver detent notch
• Securely holds receiver without marring the finish
• Ideal for assembly, maintenance, cleaning, and repair
• Designed for professional gunsmithing and armorer use
• Allows stable one-person operation