This kit was designed specifically for gunsmiths and armorers. The set includes twelve (12) specialized crowfoot wrenches that will fit the most common AR15 assembly nuts and a heavy-duty ½” torque wrench. To ensure that this kit will last a lifetime, the wrenches are made from stainless steel and are titanium coated. We doubt that anyone can wear one out, even under heavy use.
The single-purpose crowfoot wrenches are specialized for precise fit and manipulation of MIL-SPEC and free-float barrel nuts, muzzle device and castle nuts. And, the titanium coated construction provides tight tolerances: i.e., solid nut-gripping strength and enhanced non-slip tool control.
This is the most complete and comprehensive AR15 armorer's torque wrench kit ever assembled. The individual specs are:
1. MASTER-FIT™ TORQUE WRENCH (10 – 150 FT-LBS)
2. DELTA RING BARREL NUT WRENCH
3. FREE-FLOAT BARREL NUT WRENCH
4. 3-PRONG FLASH HIDER WRENCH
5. EXTENDED & STANDARD CASTLE NUT WRENCH
6. THIN CASTLE NUT WRENCH
7. 2″ SPANNER WRENCH
8. 5/8″ MUZZLE DEVICE / A2 BUTTSTOCK EXTENSION TUBE WRENCH
9. 3/4″ MUZZLE DEVICE WRENCH
10. 1-1/8″ FREE-FLOAT BARREL NUT WRENCH
11. 30MM FREE-FLOAT BARREL NUT WRENCH
12. 1-1/4″ FREE-FLOAT BARREL NUT WRENCH
13. 1-5/16″ FREE-FLOAT BARREL NUT WRENCH
14. HARD-SIDED TOOL STORAGE CASE
As we said at the beginning, this kit was designed for armorers and gunsmiths. However, if you are an individual who likes to experiment with a variety of upgrades and modifications to your AR15, you may want to seriously consider it for your inventory.

With an MSRP of $299, it isn’t cheap, but it is well worth every penny.