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FLEXMARKSTHESPOT

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Building on the Temple of Gainz Temple of Gainz All-in-One Power Rack + Functional Trainer + Smith Machine V2 Beta

Every attachment below is checked for fit against this rack. Add the ones you want to your rack — nothing is saved until you copy it into a setup.

FMTS aggregates fit evidence from specifications, owners, manufacturers, and occasional first-party testing. A fit report documents that parts mate; it is not a certification that a product is safe to load.

Rack Attachments

The guide · 1 of 1What are you looking to add to your rack?
J-Cupsmade for your rack first, then likely fits — each group by price

Bar catches that hold the loaded bar at rack height. Confirm peg count — some roller J-hooks use a two-hole hitch pin.

REP FitnessStandard J-Cups 2.0
J-Cups75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the PRA-4002 variantbased on matching specs — not physically confirmed
$79.99
REP FitnessRound Sandwich J-Cups
J-Cups75x75mm / 16mm
fitslisted for the same mounting ecosystembased on matching specs — not physically confirmed
$99.99
Titan FitnessX-3 Series Quick Release Roller J-Hooks
J-Cups75x75mm / 16mm
fitslisted for the same mounting ecosystembased on matching specs — not physically confirmedthis rack's uprights are metric 75×75 mm — an attachment made to true 3×3" (76.2 mm) may sit slightly loose
$104.97
REP FitnessFlat Sandwich J-Cups 2.0
J-Cups75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the PRA-4012 variantbased on matching specs — not physically confirmed
$105.99
REP FitnessRound Sandwich J-Cups 2.0
J-Cups75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the PRA-4022 variantbased on matching specs — not physically confirmed
$111.99
GhostGhost Roller J-Cup 2.0 - 5/8" Pin
J-Cups3x3 5/8in
fitsspecs matchbased on matching specs — not physically confirmedthis rack's uprights are metric 75×75 mm — an attachment made to true 3×3" (76.2 mm) may sit slightly loose
$215
REP FitnessStandard J-Cups (1000 Series)
J-CupsREP 1000 Series
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$59.99
Get RX'dRX3 J-Cups
J-Cups75x75mm / 25mm
incompatiblelisted for a different mounting ecosystem
$80
Rogue FitnessInfinity J-Cup Set
J-Cups2x3 5/8in
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$80
REP FitnessLowered J-Cups 2.0
J-Cups75x75mm / 25mm
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$89.99
Titan FitnessT-2 Series J-Hooks
J-Cups50x50mm / 25mm
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$91.97
Titan FitnessT-3 Series J-Hooks
J-Cups50x75mm / 16mm
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$91.97
FringeSportJ-Cups 3x3 Pair
J-Cups75x75mm / 25mm
incompatiblelisted for a different mounting ecosystem
$92
Rogue FitnessMonster J-Cup Pairs
J-Cups3x3 1in
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$150
GhostGhost Roller J-Cup 2.0 - 1" Pin
J-Cups3x3 1in
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$255
Safetiesmade for your rack first, then likely fits — each group by price

Spotter arms, pin-pipe, strap, and flip-down safeties that catch a failed lift.

REP FitnessPin-Pipe Safeties
Pin/Pipe SafetiesREP 1000 Series, 75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the PRA-4100-24 variantbased on matching specs — not physically confirmed
$36
REP FitnessStrap Safeties
Strap Safeties75x75mm / 16mm
fitslisted for the same mounting ecosystemmatches as the PRA-4120-24 variantbased on matching specs — not physically confirmed
$103.99
Titan FitnessX-3 Series Safety Straps
Strap Safeties75x75mm / 16mm
fitslisted for the same mounting ecosystembased on matching specs — not physically confirmed
$144.97
REP FitnessFlip-Down Safeties
Flip Down SafetiesREP 1000 Series, 75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the PRA-4110-24 variantbased on matching specs — not physically confirmed
$149.99
REP FitnessSpotter Arms
Spotter Arms75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the 4000-variant variantbased on matching specs — not physically confirmed
$159.99
REP FitnessAltitude™ Strap Safeties
Strap SafetiesRep Altitude
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$79.99
REP FitnessStrap Safeties 2.0
Strap SafetiesREP 1000 Series, 75x75mm / 25mm
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$95.99
Titan FitnessT-3 Series Spotter Arms
Spotter Arms50x75mm / 16mm
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$114.97
Get RX'dRX3 Spotter Arms
Spotter Arms75x75mm / 25mm
incompatiblelisted for a different mounting ecosystem
$200
EliteFTSRack Safety Straps
Spotter ArmsElitefts 3x3 3/4in Side
incompatiblelisted for a different mounting ecosystem
$447
Monoliftmade for your rack first, then likely fits — each group by price

Swing-away catches so you walk out without stepping back.

Pull-Up & Gripmade for your rack first, then likely fits — each group by price

Pull-up bars and specialty grip handles.

REP Fitness1.25" Pull-Up Bar
Pull Up Bar75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystem
$59.99
REP Fitness2" Pull-Up Bar
Pull Up Bar75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystem
$69.99
REP FitnessRaw Pull-Up Bar
Pull Up Bar75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystem
$69.99
REP FitnessMulti-Grip Pull-Up Bar
Pull Up Bar75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the #1 variant
$139.99
Lever Armmade for your rack first, then likely fits — each group by price

Jammer arms, belt-squat, and branded utility pads — often proprietary to the rack line.

REP FitnessISO Arms
Jammer Lever Arms75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the PRA-4850 variant
$559.99
REP FitnessBelt Squat
Belt Squat
mounts to another attachment — no rack verdict
$309.99
Cable & Pulleymade for your rack first, then likely fits — each group by price

Cable and pulley systems for functional and isolation work.

Get RX'dRX3 Lat Pulldown Seat
Cable Pulley System75x75mm / 25mm
incompatiblelisted for a different mounting ecosystem
$135
REP FitnessAres 2.0 Builder
Cable Pulley System75x75mm / 25mm
incompatiblelisted for a different mounting ecosystem
$2999.99
Landminemade for your rack first, then likely fits — each group by price

Pivoting barbell anchor for rotational and pressing movements.

Titan FitnessRack Mounted Landmine
Landmine50x75mm / 16mm, 75x75mm / 16mm, 75x75mm / 25mm, 50x50mm / 25mm
fitslisted for the same mounting ecosystem
$93.97
Storagemade for your rack first, then likely fits — each group by price

Rack-mounted plate horns, bar and dumbbell holders, band pegs, mag pins, and shelves. Free-standing storage lives in the Storage category.

REP FitnessBand Pegs 2.0
Band Pegs75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the PRA-4602 variant
$23.99
REP FitnessBand Pegs
Band Pegs75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the PRA-4600 variant
$34.99
REP FitnessWeight Horns
Plate StorageREP 1000 Series, 75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the PRA-4410-06 variant
$34.99
Titan FitnessTitan Mag Pins
Mag Pins50x75mm / 16mm, 75x75mm / 16mm, 50x50mm / 25mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystem
$54.97
REP FitnessWeight Storage Horn Sets
Plate Storage75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the PR-4000-HORNS variant
$259.99
REP FitnessUtility Horn
Specialty Utility25mm
mounts to another attachment — no rack verdict
$54.99
REP FitnessPeg Boards
Storage Shelves
mounts to another attachment — no rack verdict
$399.99
REP FitnessStorage Wings
Storage Shelves75x75mm / 25mm
mounts to another attachment — no rack verdict
$659.99
Get RX'dRX3 Plate Sleeve
Dip Attachment75x75mm / 25mm
incompatiblelisted for a different mounting ecosystem
$35
FringeSportStrong AF Magpin
Plate Storage75x75mm / 25mm
incompatiblelisted for a different mounting ecosystem
$69
Conditioningmade for your rack first, then likely fits — each group by price

Dip stations, leg curl/extension, rope anchors, bag mounts, and other accessory work.

REP FitnessLeg Roller
Leg Curl Extension75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the PRA-4710 variant
$99.99
REP FitnessWall Ball Target
Wall Ball Target75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystem
$99.99
REP FitnessDip Station
Dip Attachment75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the PRA-4200 variant
$129.99
REP FitnessDrop-In Dip Attachment
Dip Attachment75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the PRA-4210 variant
$159.99
Rogue FitnessRogue MILO
Specialty UtilityCrossmember Mounted
needs verificationno evidence yet
$495
REP FitnessUtility Seat
Utility Pad75x75mm
mounts to another attachment — no rack verdict
$199.99
REP FitnessShackle
Adapter75x75mm / 25mm
incompatiblelisted for a different mounting ecosystem
$39.99
REP FitnessLeg Roller 2.0
Leg Curl Extension75x75mm / 25mm
incompatiblelisted for a different mounting ecosystem
$89.99
Vesta FitnessFoot Plate
Dip Attachment75x75mm / 25mm
incompatiblelisted for a different mounting ecosystem
$109.99
FringeSport3x3 Dip Station
Dip Attachment75x75mm / 25mm
incompatiblelisted for a different mounting ecosystem
$189
REP FitnessDip Attachment 2.0
Dip Attachment75x75mm / 25mm
incompatiblelisted for a different mounting ecosystem
$199.99
Vesta FitnessBoxing Kit
Dip Attachment75x75mm / 25mm
incompatiblelisted for a different mounting ecosystem
$654.49
Structuralmade for your rack first, then likely fits — each group by price

Crossmembers, rear extensions, and feet that change the rack frame — exact-match only, never cross-brand.

REP FitnessFront Foot Extension Pair
Extension Feet75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the PRA-4150 variant
$99.99
REP FitnessRear Base Stabilizer 2.0
Rear Rack Extension75x75mm / 16mm, 75x75mm / 25mm
fitslisted for the same mounting ecosystemmatches as the PR-4002-RBS variant
$119.99
REP FitnessApollo™ Base
Rack Base75x75mm / 25mm
incompatiblelisted for a different mounting ecosystem
$199.99
The whole wallevery attachment in the catalog, sorted your way — #badges still show the engine's order · the shelves above are lenses on this one list
#140Band Pegs 2.0
fitslisted for the same mounting ecosystemmatches as the PRA-4602 variant
$23.99
#148Band Pegs
fitslisted for the same mounting ecosystemmatches as the PRA-4600 variant
$34.99
#149Weight Horns
fitslisted for the same mounting ecosystemmatches as the PRA-4410-06 variant
$34.99
#1Pin-Pipe Safeties
fitslisted for the same mounting ecosystemmatches as the PRA-4100-24 variantbased on matching specs — not physically confirmed
$36
#172Titan Mag Pins
fitslisted for the same mounting ecosystem
$54.97
#902" Pull-Up Bar
fitslisted for the same mounting ecosystem
$69.99
#92Raw Pull-Up Bar
fitslisted for the same mounting ecosystem
$69.99
#9Standard J-Cups 2.0
fitslisted for the same mounting ecosystemmatches as the PRA-4002 variantbased on matching specs — not physically confirmed
$79.99
#241Leg Roller
fitslisted for the same mounting ecosystemmatches as the PRA-4710 variant
$99.99
#244Wall Ball Target
fitslisted for the same mounting ecosystem
$99.99
#24Strap Safeties
fitslisted for the same mounting ecosystemmatches as the PRA-4120-24 variantbased on matching specs — not physically confirmed
$103.99
#26X-3 Series Quick Release Roller J-Hooks
fitslisted for the same mounting ecosystembased on matching specs — not physically confirmedthis rack's uprights are metric 75×75 mm — an attachment made to true 3×3" (76.2 mm) may sit slightly loose
$104.97
#27Flat Sandwich J-Cups 2.0
fitslisted for the same mounting ecosystemmatches as the PRA-4012 variantbased on matching specs — not physically confirmed
$105.99
#29Round Sandwich J-Cups 2.0
fitslisted for the same mounting ecosystemmatches as the PRA-4022 variantbased on matching specs — not physically confirmed
$111.99
#268Rear Base Stabilizer 2.0
fitslisted for the same mounting ecosystemmatches as the PR-4002-RBS variant
$119.99
#280Dip Station
fitslisted for the same mounting ecosystemmatches as the PRA-4200 variant
$129.99
#111Multi-Grip Pull-Up Bar
fitslisted for the same mounting ecosystemmatches as the #1 variant
$139.99
#43X-3 Series Safety Straps
fitslisted for the same mounting ecosystembased on matching specs — not physically confirmed
$144.97
#44Flip-Down Safeties
fitslisted for the same mounting ecosystemmatches as the PRA-4110-24 variantbased on matching specs — not physically confirmed
$149.99
#50Spotter Arms
fitslisted for the same mounting ecosystemmatches as the 4000-variant variantbased on matching specs — not physically confirmed
$159.99
#311Drop-In Dip Attachment
fitslisted for the same mounting ecosystemmatches as the PRA-4210 variant
$159.99
#64Ghost Roller J-Cup 2.0 - 5/8" Pin
fitsspecs matchbased on matching specs — not physically confirmedthis rack's uprights are metric 75×75 mm — an attachment made to true 3×3" (76.2 mm) may sit slightly loose
$215
#370Weight Storage Horn Sets
fitslisted for the same mounting ecosystemmatches as the PR-4000-HORNS variant
$259.99
#463ISO Arms
fitslisted for the same mounting ecosystemmatches as the PRA-4850 variant
$559.99
#85Round Sandwich J-Cups
fitslisted for the same mounting ecosystembased on matching specs — not physically confirmed
$99.99
#139Utility Hook
needs verificationno evidence yet
$14.99
#171Pin Plate Pegs
needs verificationno evidence yet
$52.99
#12Roller J-Cups
needs verificationno evidence yet
$81.99
#234Rogue MRT
needs verificationno evidence yet
$98
#240Landmine
needs verificationno evidence yet
$99.99
#393PRx Footplate
needs verificationno evidence yet
$299.99
#431PRx Axis Pad
needs verificationno evidence yet
$389.99
#444Rogue Echo GHD
needs verificationno evidence yet
$445
#520Rogue MILO
needs verificationno evidence yet
$495
#174Utility Horn
mounts to another attachment — no rack verdict
$54.99
#243Utility Seat Pad
mounts to another attachment — no rack verdict
$99.99
#346Utility Seat
mounts to another attachment — no rack verdict
$199.99
#397Belt Squat
mounts to another attachment — no rack verdict
$309.99
#433Peg Boards
mounts to another attachment — no rack verdict
$399.99
#471Storage Wings
mounts to another attachment — no rack verdict
$659.99
#150RX3 Plate Sleeve
incompatiblelisted for a different mounting ecosystem
$35
#157Shackle
incompatiblelisted for a different mounting ecosystem
$39.99
#165Monster Shackle
incompatiblelisted for a different mounting ecosystem
$48
#3Standard J-Cups (1000 Series)
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$59.99
#185T-3 Series Shackles
incompatiblelisted for a different mounting ecosystem
$64.97
#192Strong AF Magpin
incompatiblelisted for a different mounting ecosystem
$69
#8Altitude™ Strap Safeties
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$79.99
#207Barbell Tube Stand
incompatiblelisted for a different mounting ecosystem
$79.99
#208Dual Barbell Hanger
incompatiblelisted for a different mounting ecosystem
$79.99
#10RX3 J-Cups
incompatiblelisted for a different mounting ecosystem
$80
#11Infinity J-Cup Set
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$80
#15Lowered J-Cups 2.0
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$89.99
#223Leg Roller 2.0
incompatiblelisted for a different mounting ecosystem
$89.99
#17T-2 Series J-Hooks
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$91.97
#18T-3 Series J-Hooks
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$91.97
#20J-Cups 3x3 Pair
incompatiblelisted for a different mounting ecosystem
$92
#22Strap Safeties 2.0
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$95.99
#238T-3 Series Dip Bars
incompatiblelisted for a different mounting ecosystem
$99.97
#251Infinity Matador
incompatiblelisted for a different mounting ecosystem
$105
#256Foot Plate
incompatiblelisted for a different mounting ecosystem
$109.99
#31T-3 Series Spotter Arms
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$114.97
#261T-2 Series Dip Bars
incompatiblelisted for a different mounting ecosystem
$114.99
#36T-3 Series Flip-Down Safety Bars
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$124.97
#110Double Pull-Up Bar
incompatiblelisted for a different mounting ecosystem
$139.99
#296Monster Mini Feet
incompatiblelisted for a different mounting ecosystem
$140
#46Monster J-Cup Pairs
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$150
#52Infinity Safety Spotter Arms
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$165
#323Dip Bar Attachment
incompatiblelisted for a different mounting ecosystem
$179.99
#3303x3 Dip Station
incompatiblelisted for a different mounting ecosystem
$189
#334PRODIGY Roller Pad
incompatiblelisted for a different mounting ecosystem
$190after FLEX5
#339Monster Matador
incompatiblelisted for a different mounting ecosystem
$195
#344Apollo™ Base
incompatiblelisted for a different mounting ecosystem
$199.99
#345Dip Attachment 2.0
incompatiblelisted for a different mounting ecosystem
$199.99
#62RX3 Spotter Arms
incompatiblelisted for a different mounting ecosystem
$200
#71Ghost Roller J-Cup 2.0 - 1" Pin
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$255
#73Monster Safety Strap System 2.0
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$265
#78Monster Safety Spotter Arms 2.0
incompatiblelisted for a different mounting ecosystembased on matching specs — not physically confirmed
$310
#410Omni™ - Rack Base
incompatiblelisted for a different mounting ecosystem
$329.99
#414PRODIGY | Ball Target
incompatiblelisted for a different mounting ecosystem
$332.50after FLEX5
#430Monster Slinger
incompatiblelisted for a different mounting ecosystem
$389
#442Ultimate Power Seat
incompatiblelisted for a different mounting ecosystem
$439.99
#83Rack Safety Straps
incompatiblelisted for a different mounting ecosystem
$447
#470Boxing Kit
incompatiblelisted for a different mounting ecosystem
$654.49
#505PRODIGY | SMART ARM
incompatiblelisted for a different mounting ecosystem
$1377.50after FLEX5
#513Ares 2.0 Builder
incompatiblelisted for a different mounting ecosystem
$2999.99
The whole rack attachments catalog is on this floor — nothing hidden, nothing re-scored. Your answers build and re-order shelves (they never remove a attachment); shelves start at the lowest price and re-sort your way; only your own filters ever remove.

Ranked from your picks — commission never affects order · How this works

See it in your spaceBeta

Place the Temple of Gainz Temple of Gainz All-in-One Power Rack + Functional Trainer + Smith Machine V2 on your floor at true size, through your phone's camera. Drag to look around the 3D model below.

Point your camera at the floor once it opens.

Snap a photo in AR and post it — tag @flex.marks.the.spot and we'll share our favorites. Living-room racks welcome.

AI-drafted model AI-drafted (Rodin, high effort) from Temple of Gainz's own 8-angle product renders with their permission, sized to the maker's published dimensions, with our floor mat and Flex Marks the Spot branding fused in. Details approximate; pending Temple of Gainz verification. 76.3″ × 62.6″ of floor · 91.2″ tall.