Aero Precision EPC-9 Slip Fit Magwell (SFM™)


  • Low profile design, free of snag points, offers unobstructed manual of arms
  • Durable single piece nylon construction
  • Simplified hardware reduces potential failure points to effectively none
  • Ultralight construction: 0.60 oz including hardware

Made in the USA – Full Lifetime Warranty

(1 customer review)

In stock


The EPC Slip Fit Magwell (SFM™) brings “extra flare” to your EPC-9, just over doubling the already generous funnel of the receiver. The unique attachment method we co-developed with Darq Industries, termed the Slip Fit, offers users a simplified one piece construction with reduced points of (potential) failure. The hardware follows this simplified approach, consisting of one 4-40 socket head screw and one threaded insert, offering a secure and reliable fit while also keeping the overall weight right at 0.60 oz.


Nylon Polymer

Weight w/ Hardware

0.6 oz (17G)


– 3 in/lbs – Do not over-torque

Hardware Included

1 x Hex Screw
1 x 3/32" Allen Key


L – 2.98 in. (75.69mm)
W – 1.83 in. (46.48mm)
H – 0.795 in. (20.19mm) off of rail

  1. Steve

    If you are building an Aero EPC-9, this is a must have! I looked everywhere on the internet for a magwell for this build. And what do you know, my favorite polymer producer comes through again! I wish I could post a picture of mine on here to show what it adds to a super plain looking build without it. I’ve bought 100s of products this year, this is in my top 10 favorite pieces. Driven doesn’t just make the same parts others do, there’s thought, and market research, and quality put into every product they (he) makes! Great products from better people!

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