Carry 170rds per mag with you to dominate the competition with the award-winning PTS EPM1-s mag! 

This PTS EPM1-s 170 Round Midcap M4 Magazine includes:

PTS EPM1-s 170 Round Midcap M4 Magazine:

• Extra-strong spring supports 50+ RPS 
• Compact footprint with large capacity
• Durable polymer construction
• No rattle or sound when running
• The unique window w/orange indicator on its side shows the ammo capacity estimate remaining.
• Made of Dupont™ Zytel High-Performance Reinforced Polymer for durability and improved texture.  

Compatibility:

• Fits in all M4 AEGs, HPA replicas, etc
• Verified compatible with all popular M4 platforms including Tokyo Marui, VFC, PTS, Amoeba, JG, Elite Force, Valken, G&G, TM clones, KWA, and probably all others.