Need more buffer tube reinforcement for your TTM / BD556 Receiver or LDT HK416 Then you will need this buffer bolt Support.
Easy to install. Simply friction fit it in the back of your Receiver as per pictured. This will give extra support for your bolt to screw into.
Some gearboxes do not have a threaded spring guide. This simple device that fits easily on the back of the receiver acts as a 2-in-1.
1) It will straighten your spring guide and prevent spring curls and jams.
2) It will give you are more stronger and secured reinforced lock on your buffer tube.
Please note that this will fits like a glove in the LDT HK416 Receiver, and some will need some light drilling,
while other receivers like the JG SLR will already have one per-fitted.
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