The Springfield Armory M1A Bolt Stop Spring (part no. MA0205) is a direct-fit replacement spring for the M14 and M1A platform bolt stop assembly, sold by Springfield Armory. It is produced to the same dimensions as the factory original, so it drops into an M1A or M14-pattern rifle without any fitting or modification. Inside the action, this small coil spring keeps constant pressure against the bolt stop plunger, the part responsible for locking the bolt open once the magazine runs dry. A worn or fatigued factory spring is a common reason an M1A stops locking back on an empty mag, and swapping in a fresh spring restores that reliable, correct lock-open function. It is an inexpensive fix for a specific, well-known M14/M1A wear item.

Key Specifications

• Sized as a direct-fit replacement for the M14 and M1A platform bolt stop assembly.
• Functions as the return spring behind the bolt stop plunger that locks the bolt open on an empty magazine.
• Addresses the common failure-to-lock-back symptom caused by a fatigued factory spring on M14/M1A rifles.

Frequently Asked Questions

What does this spring do? It keeps tension on the bolt stop plunger so the bolt locks open correctly once the last round fires from the magazine.

Which rifles is it made for? It is a direct-fit replacement for the M14 and M1A platform bolt stop assembly.

Buy the Springfield Armory M1A Bolt Stop Spring

Keep your M1A bolt stop working the way Springfield Armory designed it with this direct-fit replacement spring. Order it from our Lubbock, Texas gun shop for fast, direct shipping, and browse our rifle parts selection for more M14/M1A wear parts.