The PTS EPM Enhanced Polymer Magazine 150rds with a new update is the best choice for airsoft players who want to boost their performance in the field with a magazine that can keep up with high rates of fire and feed consistently. This magazine is designed to be rugged and reliable, made from high-strength polymer for superior durability. It features an enlarged base that ensures a consistent feed and a self-lubricating interior to reduce friction and jamming. The magazine also has a strengthened spring and follower to ensure consistent feeding and reliable performance. With its 150-round capacity, this magazine is the perfect choice even for heavy BBs.