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JE Machine Tech AR-15 Enhanced Vise Block — 2 models
Exact compatibility with the Aero Precision M4E1 upper is not known as Aero did change some of the external dimensions of a standard AR upper to develop their M4E1.
Was cheap and worked great for keeping the receiver in the vertical position for trigger work, installing buffer tube, etc.
1/1 found this helpful
Helpful Positive Review
Works Great
by
Nseale,
January 18, 2019
Not expensive at all and does exactly what I needed it to do. Held on to the receiver well and kept it it place. Also released easily from the receiver with no problems at all. Highly recommend and couldn't be happier with this purchase.
Does what it is supposed to do for a good price. Solid built, nothing fancy, but holds like it is supposed to. Seems like it will last a long time. Happy with purchase. No need to spend more money on a more expensive brand.