Glock 21 Gen 1-4 Factory Original Magazine Insert

The Glock 21 Magazine Insert is an original factory OEM replacement part. By resting between the magazine spring and baseplate, the insert helps provide reliable function. Crafted from durable polymer, the G21 mag insert is both shock absorbing and impact resistant to ensure lasting service in harsh and demanding conditions. Compatible with Generation 1-4 magazines, this is a good spare part to stock up on for any frequent Glock shooter. Order today.