- Make sure this fits by entering your model number.
- Includes lock n load comparator, 6 inserts, product manual
- Attaches easily to the blade of your caliper
- Inexpensive and simple way to improve accuracy
- Comes with six inserts
This fits your .
Color:Original Version
Lock-n-load 234/678 Comparator set 6. Proper length rounds are fundamental to accuracy. Make precise measurements with this tool. Includes: – Comparator body – insert: .224″ (5.56mm) – insert: .243″ (6mm) – insert: .257″ – insert: .277″ – insert: .284″ (7mm) – insert: .308″ (7.62&8Mm)