Ismi Ar-15/M16 40rd Magazine Spring
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We found a great deal on the Ismi Ar-15/M16 40rd Magazine Spring for only $10.99 at Brownells.
Manufactured exclusively with aerospace-quality, chrome silicon for superior durability and performance. After winding, each spring is heat-treated, shot peened and stress relieved for long-lasting, reliability. 40-round springs should be used with green, mil-spec followers. Mfg: Ismi SPECS: Chrome silicon steel wire.
